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Table 1 CHECKBOOK’s top rating (!) Percent of surveyed customers rating firm “superior” for... Advice on choice & use of products and (number of ratings) Promptness of service Quality of products Variety of products Ease of looking at/ testing products Reliability Overall quality Price index score2 For quality For price Hearing Centers1 75% 78% 76% 60% 66% 84% 77% $100 703-333-2711 87% (15) 87% 93% 77% 100% 100% 93% $87 ! ! Auditory Services 301-434-4300 1734 Elton Rd #104, Silver Spring, MD 93% (181) 94% 90% 79% 89% 97% 98% $82 ! ! Blue Ridge Speech & Hearing 703-858-7620 19465 Deerfield Ave #201, Landsowne, VA 83% (19) 74% 79% 41% 50% 82% 78% $100 Carolyn Wyatt Audiology Services 301-656-1933 8218 Wisconsin Ave #106, Bethesda, MD 91% (47) 87% 91% 51% 68% 91% 87% $1243 Costco All locations combined 60% (159) 65% 67% 44% 52% 85% 75% —4 —5 All-Firm Averages American Auditory Centers 6373 Little River Tpke, Alexandria, VA ! Costco 1200 S Fern St, Arlington, VA 703-413-3240 53% (40) 57% 62% 45% 60% 76% 70% —4 —5 Costco 4725 W Ox Rd, Fairfax, VA 703-332-3202 64% (64) 77% 72% 42% 41% 86% 81% —4 —5 Costco 880 Russell Ave, Gaithersburg, MD 301-417-1530 54% (48) 51% 64% 43% 53% 88% 67% —4 —5 Dr Richard Israel 301-589-3277 8830 Cameron St #310, Silver Spring, MD 92% (26) 88% 88% 77% 83% 96% 92% $97 Drake Hearing Aid Center 403 S Glebe Rd, Arlington, VA 703-521-1404 68% (37) 78% 77% 60% 61% 78% 71% $86 Family Hearing Center 301-738-1415 2301 Research Blvd #110, Rockville, MD 81% (26) 88% 88% 72% 71% 96% 84% $99 Feldman ENT Group 301-652-8847 5454 Wisconsin Ave #1535, Chevy Chase, MD 82% (17) 94% 87% 86% 67% 88% 76% —4 GWU Speech & Hearing Center 202-994-7360 2115 G St NW #B-01, Washington, DC 79% (19) 68% 76% 63% 64% 75% 84% $112 Hearing Associates 6862 Elm St #120, McLean, VA 703-748-3300 87% (30) 80% 89% 67% 69% 79% 82% $106 Hearing Health Care Center 703-369-0300 8650 Sudley Rd #209, Manassas, VA 94% (18) 100% 100% 100% 88% 100% 100% $923 Hearing HealthCare 301-946-2434 15235 Shady Grove Rd #100, Rockville, MD 89% (71) 91% 72% 50% 71% 94% 83% $107 Hearing Professionals 301-604-3177 14201 Laurel Park Dr #109, Laurel, MD 63% (20) 89% 63% 47% 72% 79% 80% $125 Hearing Solutions of Fairfax 3930 Pender Dr #140, Fairfax, VA 571-432-0640 95% (43) 93% 71% 77% 87% 95% 95% $93 ! Hull Hearing Aid Service 703-533-1622 6231 Leesburg Pike #510, Falls Church, VA 81% (131) 89% 88% 73% 72% 93% 88% $79 ! Lesner Hearing Center 5232 Dawes Ave, Alexandria, VA 703-820-3800 100% (22) 90% 100% 79% 95% 100% 100% $112 ! Otolaryngology Associates 703-573-7606 8316 Arlington Blvd #300, Fairfax, VA 62% (42) 62% 64% 49% 56% 71% 60% $109 Prince William Speech & Hearing 703-670-8126 4317 Ridgewood Center Dr, Woodbridge, VA 79% (14) 71% 92% 55% 67% 100% 92% $77 Professional Hearing Services 703-536-1666 6231 Leesburg Pike #512, Falls Church, VA 79% (41) 85% 84% 68% 71% 79% 83% $97 118 ! ! ! —5 ! ! ! ! ! Buying Hearing Aids Reprinted from Washington Consumers’ CHECKBOOK, Volume, 15, No. 3. © 2010 Center for the Study of Services. Ratings and reports are solely for the use of readers and may not be used in advertising or for commercial purposes. Now Hear This! Shopping for Hearing Aids Is it difficult to hear the TV or radio, so much so that family members often ask you to turn it down? Do you struggle to understand the cashier at the grocery store? Is it difficult to follow conversations at large gatherings? If so, it might be time to get your hearing checked. Most of us are guilty of “selective hearing” from time to time. But not listening to what you don’t want to hear is one thing—not hearing what you want to is another. That’s when a hearing aid might be in order. If you are hearing less than you should be, you can take a measure of comfort in knowing that you’re not alone. About 10 percent of Americans have some hearing loss. The figure is more than 30 percent for persons over age 65. The vast majority of those with hearing loss would benefit from using hearing aids. But most go without these helpful devices either because they are hesitant to acknowledge a handicap or because they don’t think the benefit will justify the trouble and cost. It is true that hearing aids don’t fully make up for hearing loss in the same sense that eyeglasses can restore 20/20 vision. They are rehabilitative devices that, when properly programmed and fitted, help their wearers attain their best hearing potential. But this potential varies from person to person, depending on the nature and extent of their hearing loss. Sometimes, persons who wear hearing aids find they can hear sound but they can’t always understand the words being spoken. Often this type of experience is caused by damage to the auditory system that can’t be helped by a hearing aid. Although hearing aids can’t restore norMost individuals who would benefit from hearing aids never get them. mal hearing, they have still improved the Many who do are amazed at the resulting improvement in their lives. But lives of millions of people—enabling them hearing aids can’t fully make up for hearing loss in the same sense that to enjoy their senses more fully and to eyeglasses can restore 20/20 vision. communicate more effectively with others. Don’t get a hearing aid without first consulting with a medical doctor Many first-time hearing aid wearers are to be sure your hearing loss is of a type that can be helped by a hearing surprised at the improved quality of their aid—and that it can’t be assisted by medical or surgical treatment. lives. In a study of hearing aids, the AmeriYou will have to decide what matters to you in a hearing aid. Some aids can Association of Retired Persons (AARP) have advanced features that may make them more adaptable to varying reported hearing aid user comments like hearing environments than basic models, but these features cost more. the following: “It’s such a joy to go for my In shopping for hearing aids, you will want to consider only businesses walk in the early morning and hear the that have staff who offer thorough advice and explanations of your opbirds singing, which I could not hear betions, offer a wide variety of styles and makes of aids, and have flexible fore. It is also a pleasure to hear all of a serpolicies allowing you to test out aids and return them with little or no fee if mon at church or someone’s conversation you are not satisfied. rather than parts.” Table 1 shows how area hearing centers were rated by their surveyed Hearing aids have come a long way from customers. For advice, some sellers were rated “superior” by more than the “ear trumpets” manufactured in the 90 percent of their surveyed customers while others got such favorable early 1800s—and even from the devices ratings from 60 percent or fewer. For the variety of products offered, some available just a few years ago. Today’s hearwere rated “superior” by more than 75 percent and others by fewer than ing aids can do much to meet the needs of 45 percent. their wearers in the complex and varying It is essential to get in writing how long you have to test out any aid you listening environments they encounter. purchase; what charges, if any, you will have to pay if you return it; and As hearing aids grow smaller and more whether the test period will be extended if instead of returning the aid, technologically advanced, they are also you agree to let the dispenser first try to adjust it to suit you better. more convenient and less obtrusive to wear. Be sure to shop for price. For one hearing aid model, we found that Today, if you have a hearing loss, you can prices among local sellers ranged from $1,483 to $2,850. For another, choose from hundreds of hearing aids with prices ranged from $1,640 to $3,250. varying degrees of size and sophistication. Checklist 110 Buying Hearing Aids “The ringing in your ears—I think I can help.“ © 2001 Leo Cullum/The New Yorker Collection/ www.cartoonbank.com. Reprinted with permission. How Your Hearing Works The ear is made up of three parts: the outer ear, the middle ear, and the inner ear. Sound enters the outer ear canal and strikes the eardrum, which is the outer boundary of the middle ear. A chain of three tiny bones in the middle ear receive sound vibrations from the eardrum and transmit them to the inner ear. The inner ear includes a snail-shaped chamber called the cochlea, which is filled with fluid. The vibrations transmitted by the bones of the middle ear cause movement in the fluid of the inner ear. Thousands of hair cells in the inner ear are stimulated by the movement of the cochlear fluid, sending impulses along the fibers of the auditory nerve, which goes to the brain. The brain processes this information, providing awareness of speech, music, annoying cell-phone ringtone jingles—everything we hear. How We Develop Hearing Loss Hearing loss is extremely common. It can be a normal part of the aging process and, for many, an inevitable result of living in a noisy society. There are two primary types of hearing loss: sensorineural loss and conductive loss. Ninety-five percent of all hearing aid wearers have sensorineural hearing loss, which is characterized by impairment of the inner ear or the neural pathways from the inner ear to the brain. Most sensorineural loss results from when the tiny hair cells that line the inner ear become damaged and are no longer able to transmit signals accurately to the auditory pathway and the brain. Aging is by far the most www.checkbook.org common cause of this damage, but other causes include infection, high fever, trauma, noise exposure, genetics, and use of certain prescription drugs. In rare cases, hearing loss can be the result of damage to the auditory nerve. For example, benign tumors can compress the nerve. If found early, these conditions are often treatable. Conductive hearing loss, which often can be treated medically or surgically, occurs when something interferes with sound vibrations as they pass through the outer and middle ear. A common cause is a blockage of wax buildup, which can be addressed by using an earwax softener and then flushing out the wax using a kit (both the softener and kit can be purchased from drug stores). A physician or audiologist can also remove the wax. Conductive hearing loss can also result from the presence of fluid in the middle ear. The fluid disrupts the middle ear’s ability to conduct vibrations to the inner ear. This can occur when the eustachian tube (a tiny tube connecting the middle ear to the back of the throat) is not functioning properly, often due to inflammation. This sort of hearing loss, common in children, usually can be treated medically. A punctured eardrum or problems with the functioning of the small bones in the middle ear can also cause conductive hearing loss. These types of problems are often partially or completely treatable with surgery, but hearing aids may be used if hearing loss remains following the completion of medical intervention. A combination of conductive and sensorineural hearing loss, called mixed loss, is also possible. How It Is Diagnosed If you suspect that you have hearing loss, first consult with a physician. Choose a physician—such as an otolaryngologist— who is knowledgeable about hearing loss and treatments. The right physician will be able to detect medical causes of hearing loss (such as, fluid buildup in the middle ear, a disease, or a tumor), will often be able to treat them, and will be able to recommend hearing aids in cases where that is the best treatment In This Article... ✓ Checklist 110 ✓ How Your Hearing Works 111 ✓ How We Develop Hearing Loss 111 ✓ How to Find a High-Quality Seller 117 ✓ Hearing Health Resources 117 ✓ How It Is Diagnosed 111 ✓ Ratings of Area Hearing Centers for Quality and Price 118 ✓ How to Select the Right Hearing Aid 113 ✓ How to Get a Good Price 120 ✓ Signs that You May Have Hearing Loss 113 ✓ Illustrative Low, Average, and High Prices Quoted by Sellers for Hearing Aids 120 ✓ How to Avoid Being Stuck with the Wrong Aid 116 ✓ How to Maximize the Benefits 121 ✓ Listening Strategies 121 111 Figure 1 Diagram of the Ear Middle Ear Outer Ear Inner Ear Bones of the Middle Ear Audiology from the American Speech-Language-Hearing Association). In addition to administering hearing tests, audiologists can give complete diagnostic evaluations of hearing loss. After the hearing tests, audiologists usually help patients select and purchase hearing aids. Unlike an audiologist, a “hearing aid specialist” is not required to have a degree in the field of hearing. You can check to see that a hearing aid specialist has voluntarily been certified by the National Board for Certification in Hearing Instrument Sciences, indicated by the letters BC-HIS. To receive certification, applicants must have two years of experience selling hearing aids and pass the National Competency Exam. The Hearing Test A complete hearing examination must consist of at least the following tests: pure tone air conduction test, pure tone bone Auditory Nerve conduction test, speech recognition threshold test, and word (to the Brain) discrimination test. Additional tests may be given depending on the examiner and the patient’s specific needs. Cochlea (Inner Ear) Eardrum The pure tone air conduction test determines how well a person hears at different frequencies, or “pitches.” Hearing Ear Canal threshold is determined by presenting tones at different pitches through headphones or insert earphones and asking Eustachian Tube the patient to signal when he or she hears the tone. The pure tone bone conduction test helps determine the nature of the hearing loss (sensorineural, conductive, or mixed). During this test, a bone vibrator is placed against the mastoid approach. For a list of area otolaryngologists who were most bone, located behind the ear. Again, the patient tells the examoften recommended by their peers in surveys CHECKBOOK iner the tones he or she is able to hear. conducted, see CHECKBOOK, Volume 14, No. 2, or visit the A comparison of the results of the air and bone conduction “Top Doctors” section of www.checkbook.org. tests helps localize the hearing mechanism responsible for the It is important to rule out medical problems that may be hearing loss. Air and bone conduction thresholds that are the curable before investing in a hearing aid. Some hearing aid dissame suggest that the hearing loss is sensorineural. If bone pensers have been known to sell aids to individuals who did conduction thresholds are better than air conduction threshnot need them or who would have been better served with other treatments. The U.S. Food and Drug Administration olds then there is reason to suspect the loss is conductive— that the hearing function is failing in the outer or middle ear, (FDA) prohibits the sale of a hearing aid to anyone who does not present a written statement signed by a licensed physician before it reaches the inner ear. The speech recognition threshold test determines the softest saying that the patient’s hearing has been evaluated. A hearing level of sound that can be heard and repeated. Ten to 15 twoaid dispenser may lawfully sell an aid to someone without syllable words (with equal stress on both syllables) are delivsuch a statement only if the seller has informed the consumer ered to the listener at progressively softer volumes. The that getting a medical examination is in the best interest of the threshold is the softest point at which the patient is able to reconsumer’s health and if the consumer has signed a waiver of peat words correctly 50 percent of the time. This test is a way the right to a medical examination. An AARP study conducted to check the reliability of the pure tone air conduction tests. in Florida found that dispensers often ignored the FDA reIn the speech discrimination (word recquirement. You’ll be wise not to; before ognition) test, 25 to 50 words from a getting a hearing aid, be sure to have a standardized list are presented to the physician checkup. If you suspect that you patient at a level identified as “comfortIf the physician advises that a hearing have hearing loss, first able” for listening. The patient is asked test is in order to determine the type to repeat the words. This test assesses a and degree of your hearing loss and consult your physician to patient’s ability to discriminate speech whether or not you are a candidate for a determine its cause. It is at his or her most comfortable level for hearing aid, an audiologist or a “hearing listening. The results can provide an inaid specialist” can administer one. important to rule out dication of how well a person can be exAn audiologist has extensive training medical problems that may pected to understand words when and usually holds a clinical doctor of auwearing a hearing aid. diology (AuD) degree but may hold a be curable before investing Testing may also be given to deterScD or PhD. Audiologists may also be in a hearing aid. mine most comfortable level and uncomidentified with the letters CCC-A (Cerfortable level. These are subjective tificate of Clinical Competence in 112 Buying Hearing Aids measures that a listener determines based on the level of sound intensity that feels comfortably loud or uncomfortably loud. Additional testing includes immittance testing, in which a probe tip is inserted into the ear to measure the eardrum’s mobility and middle ear functions. This test helps rule out conductive hearing loss. The examiner should also check a patient’s ears to assure that hearing loss is not due to a physical condition of the ear. This is especially important in cases where the patient has waived a medical evaluation. Ears should be checked for visible signs of drainage, blood, wax blockage, or other visible problems in the ear. The examiner should ask the patient about dizziness, tinnitus (ringing in the ears or other “head” sounds), discomfort, and any sudden hearing loss he or she has experienced. If you buy a hearing aid, you should have your hearing retested periodically to determine if any adjustments might help. How often you should have your hearing retested depends on the extent of your hearing loss and other factors; most hearing aid wearers should be retested at least every other year, but some may need to be retested every six months. The Audiogram The results of a hearing test are recorded on an audiogram, a graph showing the patient’s thresholds for hearing sensitivity. Several examples are shown in Figure 2. The horizontal axis of the graph shows frequency, or pitch, measured in “Hertz” (Hz). The measurement progresses from low pitch to high pitch, left to right, like a piano keyboard. The vertical axis, often labeled “HL” for “hearing level,” graphs the loudness of the test signal, measured in decibels (dB). Softer levels are recorded toward the top of the graph and louder levels at the bottom. The plots on the audiogram indicate the configuration and Signs that You May Have Hearing Loss If you answer “yes” to some of these questions, it might be time to get your hearing checked. • Do I often ask people to repeat themselves? Does it often seem that people are mumbling? • Do I often feel tired or stressed during conversations? • Do I often misunderstand conversations? Do I miss the point of jokes because I miss too much of the story? • Do I turn up the volume on televisions or radios so that others complain? • Do I have difficulty understanding speech in noisy places? • Do I find that when I look at people I can more easily understand what they are saying? www.checkbook.org degree of the hearing loss. For example, if the markings are farther down on the graph at higher frequencies, this means that the patient has more difficulty hearing high-pitched sounds than low-pitched sounds. This information helps determine what hearing aids will be most appropriate for the patient and also is used later in the programming and adjustment process. Levels of Loss The severity of hearing loss is determined by how loud the tone needs to be at various pitches for the patient to hear it. The standard used is: 0 to 15 dB ...........Normal hearing 16 to 25 dB .........Slight hearing loss 26 to 40 dB .........Mild hearing loss 41 to 55 dB .........Moderate hearing loss 56 to 70 dB .........Moderately severe hearing loss 71 to 90 dB .........Severe hearing loss 91 and above ......Profound hearing loss When hearing is impaired, often some pitches can be heard better than others. You might have normal or near-normal hearing for low-pitched sounds but worse hearing loss for high-pitched sounds. Age-related hearing loss often creates these types of patterns. Hearing deficiencies with varying degrees of loss are given labels such as “mild-to-moderate loss” or “moderate-to-severe loss.” For example, in normal speech, vowel sounds tend to be stronger in presentation than many consonant sounds. Vowel sounds also tend to have most of their energy in the lower pitches (toward the left side of the audiogram). Softer consonant sounds, on the other hand, (such as “s,” “t,” “f,” and “th,”) tend to be higher pitched sounds (toward the right side of the audiogram). So if you have mild-to-moderate hearing loss, you may have little or no difficulty hearing vowel sounds, but may lack the ability to hear many of the softer consonants, making it difficult to distinguish between words like “top” and “stop,” particularly in the presence of background noise. Knowing these configurations helps in describing—and treating—the problems patients have. How to Select the Right Hearing Aid Hearing aids have three main parts: a microphone that takes in sound; a circuit that processes and amplifies sound; and a speaker that conveys sound to the wearer’s ear. All of these components are powered by a small battery. Almost all new hearing aids use digital processing technology. Hearing Aid Styles Hearing aids vary in shape, size, and how they are worn. They range from tiny devices that nestle completely in the ear canal to larger, more visible models that sit behind the ear. Although many technologies can be put into any style, the smallest aids tend to have less power to address severe hearing loss. The two general categories of hearing aid styles are behindthe-ear (BTE) and in-the-ear (ITE). Within these two 113 categories, there are a number of subcategories. occupies the entire ear opening to deliver the sound; the two components are linked by a tube. A relatively new concept for BTE aids is “open-fit,” or “open-ear,” models. Like a traditional BTE model, an open-fit aid is comprised of components that sit behind the wearer’s ear, a speaker placed in the ear opening to deliver sound, and a tube that connects the behind-the-ear piece to the speaker. But instead of using an Behind-the-Ear As Figure 3 illustrates, a BTE hearing aid is so named because part of the device—the casing that holds microphone and circuitry components—sits behind the ear. A traditional BTE model is comprised of the behind-the-ear component and a custom-made “earmold” that Figure 2 Your Audiogram Shows, for Various Pitches, How Loud a Sound Must Be for You to Hear It The audiograms below are for different individuals, one with normal hearing and three with different types of hearing loss. The vertical placements of the circles and triangles show how loud a sound must be to be heard. The horizontal placements represent different frequency, or pitch, levels. Most sounds needed to understand speech are in the 500 to 3000 Hz pitch range. Normal Hearing 250Hz 500Hz 1000Hz 2000Hz Sensorineural Hearing Loss 4000Hz 8000Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz 0 dB 20 dB 40 dB 60 dB 80 dB 100 dB Conductive Hearing Loss 250Hz 500Hz 1000Hz 2000Hz Mixed Hearing Loss 4000Hz 8000Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz 0 dB 20 dB 40 dB 60 dB 80 dB 100 dB Key: 114 Range of normal hearing Air Conduction pure tone ! Masked Bone Conduction pure tone earmold that takes up the entire ear opening, the microphone for an open-fit model is smaller, leaving the ear opening largely unobstructed and allowing unaltered sounds to enter the ear. These models are particularly useful choices for users who have good or fairly good hearing in certain pitches, but need help in others. Filling these users’ ears with earmolds would mean taking away natural sounds that could be heard without the help of hearing aids—often contributing to a disconcerting, inside-a-barrel sense, called “occlusion.” Open-fit BTEs allow for a more normal mixture of amplified and natural sound and a more comfortable, less occluded experience for the wearer. Some open-fit hearing aids simply guide processed sound into the ear canal through a very thin tube, usually ending in a rubber tip. Other open-fit models use a wire instead of a tube, and contain the speaker (or receiver) at the end of the wire, in the ear canal. These aids are referred to as “receiver-in-the-canal” models, and are currently a very popular hearing aid style. In-the-Ear With ITE models, the entire aid is worn within the ear opening, or even entirely within the ear canal. Impressions of patients’ ears are made and sent to the hearing aid manufacturers, and the aids are custom-molded. As Figure 3 shows, there are several styles of ITE models, ranging in size from “full-shell,” which fill the concha (bowl) of the ear, to “completely-in-the-canal” (CIC) styles, which are almost completely hidden inside the ear canal. “Half-shell” styles are a bit smaller than full-shell styles, and “in-the-canal” (ITC) styles are a bit larger than CICs. A new variation of ITE aids is the extended-wear device. This hearing aid is placed into the ear canal by an audiologist or physician and remains there until the battery expires two or three months later or it fails for some other reason. It is then replaced with a new device. But not all patients are good candidates for this option; so if you’re interested in it, you’ll want to discuss it carefully with your physician or audiologist. Choosing a Style Since ITE aids are smaller than BTE models, they are popular with patients Buying Hearing Aids Figure 3 Hearing Aid Types Completely-inthe-Canal In-the-Canal Half-Shell Full-Shell In-the-Ear (ITE) Aids Full-Shell BTE Open-Ear BTE Behind-the-Ear (BTE) Aids Illustrations © Taina Litwak. who want a less visible hearing aid. But newer BTE models are now smaller than they once were, and also because of the benefits of open-fit technology, BTE aids are more appealing than before. On the other hand, some patients still prefer ITE aids because they are compact and keep everything contained within the ear. If you have severe hearing loss, you’ll likely be buying a BTE style, since ITE aids can’t deliver the power you’ll need. Also, BTE aids tend to be more reliable than ITE models, and BTE aids have space for larger, easier-to-operate controls. Regardless of preference, some patients are limited to one selection over another because of the shape of their ear openings or because their ears secrete too much wax. Features to Consider Most new hearing aids come with a number of features, some of which used to come with a hefty price tag. Features you should expect with even a basic new model: www.checkbook.org • Directional microphones allow hearing aids to take into account direction and timing cues for sound reaching them. This feature helps enhance speech sounds and reduces noise. It gives the user control over what gets amplified by facing the source. • Automatic volume control provides different levels of “gain” for different inputs. In other words, the hearing aid can sense the level of the sound reaching the microphone and adjust amplification accordingly. Most hearing aids also come with an option that lets wearers manually control volume. • Feedback cancellation reduces the likelihood of getting that whistling or squealing sound you may have heard coming from a hearing aid at some time. This sound results when a hearing aid re-amplifies sound coming from its own speaker. More expensive models often have more sophisticated controls for this feature, but even a modestly priced hearing aid should have some mechanism for reducing feedback. • Multiple processing channels allow a hearing aid to divide up sound processing into separate frequency regions. This allows for more flexibility for programming the hearing aid specifically to take into account a user’s different degrees of hearing loss at different frequencies. In general, the more channels, the more advanced the aid, both in terms of performance and price. But even fairly low-priced hearing aids provide processing in at least a few separate channels, and often more. • Telephone coils (T-coils) allow hearing aid wearers to use a phone without getting feedback. The coils in the hearing aid pick up the signal from the phone in the form of a magnetic field put out by the phone. This feature now is used with many other forms of assisted living technologies, such as TV and audio equipment listening systems. Many ITE models come with T-coils, and virtually all BTE models have the feature, but the smallest hearing aids can’t carry the feature because of size limitations. 115 • Multiple programs allow the hearing aid to react to sound differently to accommodate different listening environments. Because no single type of signal processing is ideal for every listening situation, multiple programs are like having several hearing aids in one. Examples of different listening environments, where the user might benefit from different programs, are a noisy restaurant, a meeting, or watching TV at home. Switching among programs may be performed manually by the user or in more advanced aids may be performed automatically. You might consider buying via mail order or the Internet. This purchase option, however, offers little of the support you can get when buying from a local firm. Most hearing aid purchases require several follow-up appointments before customers are comfortable and satisfied with their new aids. The more advanced hearing aid features usually mean advanced prices— the most expensive models can cost $5,000 or more per hearing aid—so you’ll want to think carefully about whether or not the added benefit of special features is worth the cost. Factors to consider include the severity of your hearing loss and your lifestyle. For example, if you lead a relatively quiet life and won’t often benefit from an aid that has advanced sound processing, your needs will be different from someone who regularly attends noisy parties, attends conferences, or has business dinners in restaurants. Some of the non-basic features available (usually for extra cost) include— • Bluetooth connectivity lets the hearing aid receive a Bluetooth signal. This is nice for cell phone use, of course, but some manufacturers also offer systems allowing you to use the Bluetooth signal with a TV or landline phone. • Remote controls allow wearers manually to adjust volume, program switching, and other settings using a small remote rather than having to fiddle with controls on the aid itself. • Communication between hearing aids is a feature that enables right- and left-side aids to share information that can optimize hearing response in certain settings. Some hearing aids use this communication simply to synchronize manual volume adjustments and program changes, so if the wearer changes a setting on one ear, it will automatically make the same change to the other. • CROS adaptation is a system used by persons who have unilateral hearing loss (hearing loss primarily in one ear) whereby a microphone for the ear with poor hearing sends sound it receives to the other ear. The idea is that instead of trying to compensate for hearing loss on one side by amplifying sound on that side, sounds that ear should hear are delivered largely unchanged to the ear that can hear them. But this set-up requires patience—and motivation—from the wearer to get used to a new way of listening. • Additional features—There are other features available to make life with hearing aids easier, such as a low battery indicator and a mute feature to reduce feedback during insertion and removal of the aid. 116 One Aid or Two? If you have hearing loss in both ears, it is generally considered a good idea to purchase aids for both ears. Buying two aids will mean you’ll probably have to pay twice as much. But the benefits of two aids are significant: they will improve your balance and safety because you’ll be more easily able to localize and differentiate sounds, and they’ll make it easier for you to understand speech in noisy environments because each aid can be used at lower listening levels. On the other hand, if most of your hearing aid use will be in a quiet home environment and in one-on-one conversation, you may not benefit much by the extra sound information two aids would supply and you might reasonably decide to just buy one aid. Some patients find it difficult to maintain and manage two hearing aids. Others simply want to minimize the appearance of a handicap, and feel one aid will be less apparent than two. There are some uncommon instances where using just one hearing aid is preferable; for example, if one ear has poor ability to discriminate speech or if one ear has a medical condition that contraindicates the use of amplification for health reasons. How to Avoid Being Stuck with the Wrong Aid Most hearing aid purchases go off without a hitch. But some don’t. It’s not easy to get it right since each patient’s hearing loss is unique and the expectations of each are different. Even if two patients have the same hearing loss on paper, their rehabilitative needs may be very different. Dispensing hearing aids is also difficult because most hearing aids are custom-molded, so patients can’t try out various makes and models exactly as they would fit in their ears. But it is possible to try different technologies. Many BTE models can be fitted with special pliable earpieces and then set up for tests. The sound quality you get in the test should be fairly close to what you will get when fitted with your own device. Such demonstrations might be helpful in making your selection. But no in-store demonstration will show you what your experience with a particular technology will be once you are in real-life listening environments. Too much depends on your specific hearing loss, and a sample hearing aid will likely sound different from one that is custom-fitted for you. For this reason, some audiologists prefer not to perform these demonstrations, and instead rely on the real-life experiences of the client, making adjustments as necessary. Ultimately, time and experience with a particular hearing aid may be the only way to determine how well it works for you. Buying Hearing Aids When purchasing a hearing aid, you can take steps to protect yourself from bad choices. There are also laws to protect you from being locked into a hearing aid purchase that does not meet your needs. According to District, Maryland, and Virginia law, you have 30 days after buying a hearing aid to return the aid for a refund. You may, however, still have to pay a portion of the hearing aid costs. That portion varies tremendously from company to company: some charge nothing; others charge a flat fee of $50 to $100; others charge a fee equal to 10 percent of the price of the hearing aid(s). So it is important to ask about refund policies and get a dispenser’s policy in writing. Some dispensers will extend the 30-day trial period if more time is needed—it is not unusual for a dispenser to allow 60 or more days for wearers who have special needs or who have bought particularly complicated hearing aids. Dispensers’ flexibility is generally dependent on their willingness and ability to negotiate with the manufacturer to take back aids beyond the usual 30 days. If you feel you might need extra time to decide about an aid, you should ask the dispenser if an extension is possible and get the dispenser’s promise in writing. Hearing aid dispensers usually offer a free adjustment period during which the dispenser will provide assistance after your purchase. We found that this period varies from seller to seller, with some giving free adjustments for six months and others for the life of the aid. If you are buying a hearing aid for the very first time or trying a new type of aid, be particularly aware of the dispenser’s policy regarding follow-up appointments. Also, find out whether your return period will be extended if you need to have adjustments made, and get this promise in writing. You don’t want to lose your right to return an aid simply because you have spent weeks or months trying to get it adjusted to meet your needs before determining that it just won’t suit you. To back up newly purchased aids, most manufacturers provide a minimum warranty of one year. Warranties from some manufacturers last two years and for some aids the warranty period is even longer. In most instances, you can buy an extended warranty that keeps the normal warranty in effect for an extra year. You can also buy hearing aid insurance to cover an aid for damage or loss, either as an add-on to a manufacturer’s warranty or as a separate policy. A hearing aid dispenser should be able to provide information about insurance; check also with your homeowners insurance carrier, as you may be able to purchase a personal articles floater for hearing aids as part of your policy. Before buying any insurance, compare the cost of it against the price of the aid. Usually, these types of insurance policies aren’t worth their premiums. With luck and a little effort, you can avoid having to buy new hearing aids often. One way to expand your hearing aid’s lifespan is to keep it clean. The industry standard for a hearing aid’s lifespan is about four years, but it is not uncommon for a person to use the same hearing aid for much longer than that— sometimes ten or more years. On the other hand, hanging onto the same aid for so long may mean missing out opportunities to try new technologies. www.checkbook.org How to Find a High-Quality Seller Two words of advice for those looking for a good place to purchase a hearing aid: be wary. Because of the “scientific” nature of the purchase, consumers are often vulnerable to misinformation and bad deals. An AARP study conducted in Florida revealed many shoddy sales practices. AARP had consumer testers make a total of 169 visits to 23 different hearing aid dispensers. The study revealed that half of the dispensers in the study failed to follow the state’s minimum hearing evaluation standards Hearing Health Resources AARP www.aarp.org/health Academy of Doctors of Audiology 866-493-5544 www.audiologist.org Alexander Graham Bell Association for the Deaf and Hard of Hearing 202-337-5220 www.agbell.org American Academy of Audiology 800-222-2336 www.audiology.org American Academy of Otolaryngology 703-836-4444 www.entnet.org American Speech-LanguageHearing Association (ASHA) 800-638-8255 www.asha.org Better Hearing Institute (BHI) 800-327-9355 www.betterhearing.org Hearing Industries Association (HIA) 202-449-1090 www.hearing.org Hearing Loss Association of America (HLAA) 301-657-2248 www.shhh.org International Hearing Society (IHS) 734-522-7200 www.ihsinfo.org Lions Club Sight and Hearing Foundation 630-571-5466 www.lionsclubs.org 117 Table 1 Quality of products Variety of products Ease of looking at/ testing products Reliability Overall quality Price index score2 75% 78% 76% 60% 66% 84% 77% $100 For price Promptness of service All-Firm Averages Advice on choice & use of products and (number of ratings) Hearing Centers1 For quality CHECKBOOK’s top rating (!) Percent of surveyed customers rating firm “superior” for... Professional Hearing Services 150 Elden St #235, Herndon, VA 703-707-0002 55% (13) 69% 64% 56% 38% 67% 46% $98 Professional Hearing Services 8314 Traford Ln #C, Springfield, VA 703-569-0355 55% (23) 70% 77% 60% 55% 67% 57% $105 57% (45) 56% 44% 31% 43% 68% 49% —4 —5 301-365-6270 60% (15) 67% 64% 46% 62% 79% 64% —4 —5 Sears/Miracle-Ear Center 301-593-9521 11255 New Hampshire Ave, Silver Spring, MD 86% (14) 71% 36% 31% 50% 79% 62% —4 —5 Sonus/Alexandria Hearing Center 703-823-3336 4660 Kenmore Ave #409, Alexandria, VA 67% (24) 71% 74% 67% 56% 82% 63% $107 Sonus/Arlington Hearing Center 3260 Wilson Blvd, Arlington, VA 703-525-1898 57% (22) 77% 55% 45% 58% 68% 50% $96 Sonus/Rockville Hearing Aid Center 301-231-9520 133 Rollins Ave #2, Rockville, MD 63% (16) 69% 56% 43% 60% 81% 69% $94 Sonus/The Hearing Center 301-949-8070 10313 Georgia Ave #101A, Silver Spring, MD 76% (29) 75% 69% 62% 60% 81% 72% $114 Vienna-Fair Oaks Hearing Service Ctr 703-938-5060 201 Park St SE, Vienna, VA 64% (33) 69% 58% 43% 39% 67% 63% $99 Sears/Miracle-Ear Center All locations combined Sears/Miracle-Ear Center 7103 Democracy Blvd, Bethesda, MD FOOTNOTES: 1 See text and page 144 for description of research methods, dates, and limitations. We’ve included all firms for which we received at least 10 ratings on our customer survey. If a firm is not listed here, it simply means that we did not have at least 10 ratings for it; that fact has no negative or positive implications. 2 For each firm, this index is intended to suggest the price a customer might expect to pay for hearing aids that would cost $100 at the “average” firm. The basis for the index is prices quoted by firms for some or all of 12 specific models of hearing aids, includ- before recommending a hearing aid. Of the consumer testers who had not visited a physician prior to their appointment, only 14 percent were advised that it was in their best interest to see a physician before purchasing an aid, despite the federal law requiring that they be so advised. The consumer testers complained of being tested in “noisy” rooms in 11 of the 23 sites. In many instances, sellers recommended hearing aids for persons who did not need them. Overall, dispensers told 57 percent of the consumer testers that they needed a hearing aid. This compares with the 45 percent judged to need an aid by the audiologist hired by AARP to evaluate the study participants. Some dispensers recommended aids to as many as 90 percent of the consumer testers. The Florida study also found many instances of deceptive sales statements. The most common was the claim that a hearing aid would help slow down hearing loss or ear damage. This is completely misleading, since hearing aids can only make you hear better and will have no impact on your natural hearing capacity. The study also found instances of vague pricing policies. Some dispensers advertised that a hearing aid was on sale, only to reveal a “sale” price that was the same price that the www.checkbook.org ing an audiogram and any fitting costs. Unless otherwise noted, each score is based on at least three price quotes. 3 Price index score is based on two price quotes. 4 Insufficient data. 5 Insufficient data to determine whether checkmark is warranted. dispenser always charged for the hearing aid. Others advertised “free” hearing evaluations, later adding the caveat that the test was free only if a hearing aid was purchased the same day. In our own surveys of hearing aid buyers, sellers were for the most part rated favorably by their customers. But we did receive several comments that echo the problems cited in AARP’s study: • “Very pushy people... Hearing test done in five minutes only, very amateurish. I did not feel comfortable with recommendations. Also prices are very high.” • “Attitude of staff seemed more like sales personnel than hearing specialists. I always felt like I was being sold a product rather than feeling that they were trying to help me hear better.” • “Complete used-car sales pitch, taking control of communication to get me to upgrade to a more expensive hearing aid. When I resisted, she got irritated.” • “Pushed me into a product which may or may not be the right product... [O]ffered free hearing test which was perfunctory, done using a portable desktop unit and not conducted by an audiologist.” 119 Table 2 Illustrative Low, Average, and High Prices Quoted by Sellers for Hearing Aids1 Description Low price Average price High price Siemens “PURE” receiver-in-the-canal (RIC) $1,483 $2,140 $2,850 Widex “MIND 440” behind-the-ear (BTE) $2,100 $3,076 $3,600 GN ReSound “Dot 20” behind-the-ear (BTE) $1,640 $2,412 $3,250 Phonak “EXALIA” in-the-ear (ITE) $2,450 $3,119 $3,895 Oticon “EPOQ-VW” behind-the-ear (BTE) $2,100 $3,048 $3,600 1 Some prices were rounded to the nearest whole dollar. Prices include the cost of one hearing aid, a hearing exam/audiogram, and fitting. • “Over-promised the improvement my wife would experience with new digital technology which ultimately showed no benefit for her.” • “I didn’t feel that the technician tried to understand what I was telling her and she continued to make things worse. I went back to my 20-year-old aids.” To help you find advice you can trust, Table 1 shows how area hearing centers were rated by CHECKBOOK and Consumer Reports subscribers. On page 144, we further describe our customer survey and other methods. When shopping, it is important to know as much as possible about the purchase you are about to make, arrive equipped with good questions, and shop around. Check the dispenser’s credentials. You are assured that the person has had substantial training and has demonstrated some level of competence if he or she is a Doctor of Audiology (AuD) and/or holds a Certificate of Clinical Competence in Audiology (CCC-A). If not, look for other evidence of training and several years of experience. Check the facilities. The room in which a hearing test is administered needs to be quiet. Most hearing test rooms are not actually “sound proof” but they are “sound treated.” In order to block out office noise and increase the sound absorption of the room, extra drywall, insulation, and sealant may be used in the construction of the room. 120 The best way for a hearing center to ensure the room is properly soundproofed is to install a “sound booth.” There are companies that specialize in the construction of audiometric testing rooms, or sound booths, which can be ordered in a variety of sizes and sound absorption levels and built on-site. While hearing centers can also construct their own booths or sound-treat existing rooms, this does not ensure the reliable construction offered by professionally built booths. It is worth asking about the nature of the testing room used by a facility you might use. While the type of test room is not a definitive indication of whether a hearing test will be performed properly or not, the presence of a professional sound booth at least demonstrates the office is equipped to obtain the most accurate results. Make your own judgment about the quality of advice the staff provides. Do they seem interested in you? Do they ask detailed questions about the problems your hearing causes you and the circumstances in which you would most benefit from hearing aids? Do they provide a thorough explanation of the testing process and their diagnosis? Do they present several options? Do they give easy-to-understand explanations for any recommendations they make? Are important choices like buying one aid versus two discussed in ways you can understand? Once your hearing aid has been ordered, make sure it is properly fitted. You should be concerned if staff simply asks “how does it sound?” or asks if you can hear voices from behind you that are whispered. Such tactics are unscientific and can’t determine how much you’re benefiting from hearing aids. Instead, the staff should use “real ear” measurements, a process that monitors the response of the hearing aid in the ear canal as adjustments and decisions about hearing aid settings are made. This requires special equipment independent of the fitting software and equipment that are used to program the hearing aid. Real ear measurement can use a variety of stimuli to view and manipulate actively the response of the hearing aid in order to maximize access to speech and ensure overall listening comfort. This takes time and expertise, but is critical because simply programming the hearing aid using the manufacturer’s software cannot adequately ensure proper hearing aid settings. The staff can also verify the hearing aid is working optimally using more traditional testing in the sound booth (by repeating portions of the hearing test while the patient wears aids), but the results of such testing provide less specific information. Staff should also provide you with a full orientation on your new aids, showing you how to insert them, work controls, maintain and care for them, store them, and replace batteries, and should give you strategies to help you get used to hearing with them. The trial period and refund policy will, of course, be critical, as will the period for you to get free adjustments. How to Get a Good Price For some, the costs of buying a hearing aid might not be an important consideration, since some health insurance policies have coverage for hearing aids. But most health insurers don’t provide such coverage, and neit her does Medicare. So it’s likely that you’ll have to pay out of your own pocket, probably from $1,500 to $5,000 or more for a single hearing aid. Table 1 will help you find a seller that’s a good bet on price. The table includes a price index score for each firm. These scores are intended to show how Buying Hearing Aids the firm’s prices quoted to our shoppers compared to the average prices for the same aids quoted by all the firms that quoted on those aids. The scores are based on prices for a hearing test, fitting, and one hearing aid. CHECKBOOK’s shoppers (who did not reveal their affiliation with CHECKBOOK) asked for prices for 12 hearing aid models. A price index score of $110 means a firm, on average, quoted prices ten percent higher than the average of all the firms quoting on the same models. Price index scores ranged from a low of $77 to a high of $125. The prices quoted for the same aid varied widely, as you can see on Table 2. While the price index scores on Table 1 are a helpful starting point, to get the best price, you will need to shop. We recommend the following: • For your hearing test, consider only businesses that will allow you to keep a full, written copy of the results. • Find out how much the provider charges for hearing testing if you choose not to buy a hearing aid from it. Find out if the provider charges for the test if you don’t keep the written test results or if you do. But be wary of businesses that market heavily using “free hearing screening” ads; these providers usually aren’t in the business of providing full, evaluative examinations. • After the hearing test, get the seller’s price for the aid it recommends and get the full specifications for the device. Also get a full description of return privileges and any follow-up services included. • Call or visit other firms to get their prices based on your test results. Compare prices for the hearing aid recommended by the testing firm, but also seek the other firms’ recommendations. The cost of a hearing test alone will vary from firm to firm. Many firms charge nothing, but some charge $100 o r m o re . W h i l e we h e re a t CHECKBOOK usually adore the word “free,” in this field it’s not necessarily the best choice. A free screening may not be the equivalent of the full evaluation you need to get. Also, be sure that www.checkbook.org Listening Strategies There is only so much that hearing aids can do to improve your ability to hear. The rest is up to you. There are a number of tactics you should use to better your chances of hearing well in difficult listening environments. They require considering the sort of situation you will be in and taking the necessary steps to make it a more listening-friendly environment. • Lessen background noise. Make sure to create the best listening environment wherever you go. Loud music and televisions can be turned down if they are competing with someone for your attention. At restaurants, ask for a quiet table. At a friend’s house, suggest that the conversation be moved into another room if kids are playing games nearby. At the office, move away from the air-conditioning unit when you are trying to have a conversation. • Find a good spot. Position yourself in a room so that you minimize the distance between yourself and the speaker. When in a group, seat yourself in the center where you can see and hear everyone. In a large group listening situation, show up early so you can choose a good position in the room. • Turn the lights on. To the extent that you can, make sure rooms where you will be listening are well lit. In rooms with poor lighting, find a bright area and ask your speaker to stand there. • Plan ahead. If you know you will be in a particularly difficult listening environment, take some steps beforehand to make sure you won’t be wasting your time by showing up. You can always call ahead of time and talk to someone who knows the environment in which you will be. Are there quiet tables? Is there front row seating available? Will there be a light shining on the speaker? In a large group listening situation (such as a place of worship or a concert), call ahead to see if assistive listening devices will be made available. These devices transmit sound to a special receiver that you wear, reducing the loss of clarity that occurs when the sound travels a distance through the air. • Ask for it. Don’t be afraid to politely but firmly assert your needs. Call out from the audience for the speaker to talk into the microphone. If unamplified questions are being asked by audience members, ask that the questions be repeated by the speaker before being answered. If you are in a restaurant where the music is too loud, ask your waitperson if it is possible to turn the volume down so that you can better hear your companion. If need be, ask people to face you head-on when they speak to you. People will appreciate your candor and your hearing will benefit tremendously. the “free” firm will not charge a “consultation” or “fitting” fee, thereby negating any real savings. And be aware that a dispenser that charges nothing for a test may feel pressure to sell you something and might not be as flexible as you would like about giving you a copy of test results. In an effort to keep your costs down, you might consider buying via mail order or the Internet. You can send an impression of your ear and a recent audiogram. This purchase option, however, offers little of the support you can get when buying from a local firm. With a local firm, you get to meet with a specialist before and after your aid purchase to ensure that your aid works well. Most hearing aid purchases require several follow-up appointments before customers are comfortable and satisfied with their new aids. How to Maximize the Benefits You want to make sure your hearing aid works properly, that you get the maximum benefit it has to offer, and that it lasts a long time. 121 Judging How Well It Works Once your hearing aid has been properly fitted and adjusted, it is probably a good idea to hold off on any immediate judgments about how well it works until you have had some time to get used to the new sounds you are experiencing. At first, you might want to wear your aid for short periods of time or in listening environments that aren’t taxing. You’ll have to learn to integrate background noises—such as the hum of a refrigerator—into the spectrum of other noises you will process. You may need to adjust to the sound of your own voice, which might seem much different when heard through your hearing aid. You may even have to relearn what certain sounds are that you’ve forgotten. Once you have given yourself two or three weeks to adjust to your new aid, the following might help you determine whether it is functioning optimally: • Overall, does the hearing aid seem to be helping you hear better? • Does the hearing aid physically feel comfortable when you wear it? • Are the sounds that enter your ear from the aid comfortable? Are soft sounds audible? Are loud sounds too loud? • Have you been able to adjust to any new sounds you hear from the aid? Does it seem there is an echo or that there are hollow or tinny noises? • Have you been able to insert the aid, clean it, and deal with battery changes? If at this point (or any other time) you feel the aid is not meeting your reasonable expectations, return to the 122 dispenser. Good sellers will be willing to help. Minor complaints about sound quality or fit usually can be resolved easily. More serious complaints may require that a mold be remade or that sound needs to be delivered to the ear in a different way—maybe by using a different hearing aid model. If the dispenser wants to make some adjustments, get the dispenser to put in writing that its return period will be extended to allow you time to decide whether any adjustment makes the aid acceptable. If things just aren’t working out and you are still within the period when you are allowed to return the aid, decide whether that is what you want to do. Caring for Your Aid Proper care will prolong the life of your hearing aid and keep it functioning as it should. First, avoid damaging your aid. Although they are built to be durable, hearing aids can be damaged if they are dropped on a hard surface or become wet. It is important to remove them when swimming or showering. Dogs enjoy chewing on hearing aids, so the aids should always be kept in a secure place when they are not being used. Aids’ doors for batteries and access to controls should open easily, so if you’re having trouble, don’t force the issue. Keep your hearing aid clean. Moisture and wax can clog and damage components. If you can, remove your hearing aid when doing any activity that causes excessive perspiration. Follow the seller’s and manufacturer’s directions on how to clean the aid—and make a habit of actually doing it. Most aids need to be cleaned every day. Plan on taking your aid to the seller periodically for more thorough cleaning and maintenance. Some aids will need these tune-ups every three months, others only once per year. Hearing and Listening Training Purchasing a hearing aid is one aspect of an overall treatment plan. There are other steps that can be taken—including hearing and listening training and counseling—to help integrate someone with hearing loss into the hearing world by taking full advantage of the person’s existing hearing resources. These steps can include learning to use speech reading and other visual cues, understanding how to position oneself in hard-to-hear situations, and learning how to assert one’s needs in different hearing environments. Family members can be an integral part of this process. You may be able to get the needed services from your hearing specialist, but there are other sources available. Community colleges and universities often offer classes in hearing training or aural rehabilitation. Gallaudet University is a fantastic resource. You may also want to consider joining a support group for hearing aid wearers. In addition to providing moral support, the group can share ideas about what does and does not work when wearing an aid. You can contact the Hearing Loss Association of America (HLA A), a national organization with local chapter networks, at 301-6572248 for more information about the national organization and groups in your area. More information about publications and membership is available at HLAA’s website (www.shhh.org). Buying Hearing Aids How We Gather (and How to Interpret) Our Data Our tables rating individual firms will be more valuable to you if you know how the data were gathered and how they should be interpreted. Opinion Surveys the number of complaints by the best measure we can devise of each firm’s business volume and exposure to complaints. There are limitations to the complaint data. One problem is that some complaints may be unjustified, simply filed by cranks. Another problem is that, in some cases, we didn’t have a measure of business volume and therefore couldn’t control for differences in firms’ exposure to complaints. We always recommend that you look for substantial differences in complaint counts and rates. We also advise giving little weight to complaint counts if the total count against a firm is less than three or four. Customer survey scores reported on our tables are from our surveys of Consumer Reports and CHECKBOOK subscribers, conducted via e-mail and regular mail. Since many firms were rated by rather small numbers of raters, small differences between two firms in the percentage of raters who gave a particular rating (say, “superior”) should be ignored. The table below gives a rough guide to minimum differences you should look for in deciding on one firm over another. When using these survey data, remember that the questions are to some degree subjective and that the differences among firms might be explained by differences in the personalities, backgrounds, critical standards, and other characteristics of the raters or by biases these raters might have. To gather much of the other information on our tables, we surveyed the firms. In general, our researchers surveyed firms by phone (sometimes without revealing their affiliation with CHECKBOOK), but in some cases, data were collected by mail or from firms’ websites, or phone responses were confirmed by mail follow-up. Complaints Price Index Scores Our ratings tables on carpet and rug cleaners, fence builders, funeral homes, heating and air-conditioning services, and window installers show the number of complaints filed against individual firms with government offices of consumer affairs in Fairfax, Howard, and Montgomery counties; the Office of the Attorney General for the District of Columbia; the Consumer Protection Division of the Maryland Attorney General’s Office; and the Virginia Office of Consumer Affairs. These complaint counts are for a two-year period. Our ratings tables for the topics listed above also show counts of complaints filed with the Better Business Bureau of Metropolitan Washington, DC (BBB) for a threeyear period. On the ratings tables, we calculate complaint rates, where we are able, by dividing Survey of Firms To compute our price index scores, we calculated an average price for each job or item for all the firms that quoted on that job or item. Next we compared each firm’s price to the average. One firm might come in at 120 percent of the multi-firm average for a particular job, and another firm might come in at 90 percent. We took each firm’s percentage score on each job or item, standardized it, and assigned a weight to each job or item, based on our judgment. We then averaged the standardized, weighted percentage scores to find how the firm compared to other firms overall. Finally, we multiplied this overall percentage score by a flat dollar amount, say, $100. The price index score, then, is intended to indicate the relative prices we found for the firms, adjusted to the base of this flat dollar amount. These index scores are If one firm had this number of ratings: And a second firm had this number of ratings: Do not give much importance to the difference between the frequency with which the two firms experience a particular rating or result unless the difference is at least this many percentage points: Assuming the average of the two firms’ percentages is 50 percent 10 30 60 120 10 30 60 120 45 26 18 13 Assuming the average of the two firms’ percentages is 80 percent 10 30 60 120 10 30 60 120 36 21 15 10 A Rough Guide for Deciding Whether the Difference Between Two Percentages is Important 144 imperfect for various reasons: for instance, the jobs or items checked may not be representative; the weighting of various jobs or items in the index may not accurately reflect typical expenditure patterns; and the number of jobs or items is small. Timeliness of the Data All of the data must be interpreted in view of timeliness. Our customer survey data are from surveys conducted from January 2004 to April 2010. Survey respondents were asked to report on experiences in the preceding year. Our data on complaints for the BBB are for a three-year period dating back from a date in November or December 2009. Our data on complaints for the government offices of consumer affairs are for a two-year period between September 1, 2007 and August 31, 2009. The data from our survey of firms were collected from December 2009 to March 2010 for fence builders and heating and airconditioning services; from January to March 2010 for window installers; and from February to March 2010 for carpet and rug cleaners. Our price data were collected from July to December 2009 for heating and air-conditioning services and window installers; from August 2009 to March 2010 for opticians/optometrists; from September to November 2009 for fence builders; from October to December 2009 for florists; from October 2009 to March 2010 for carpet and rug cleaners; from January to March 2010 for funeral homes; from January to April 2010 for hearing centers; and from March to April 2010 for tire stores. For the most part, our tables include firms for which we collected 10 or more ratings on our customer survey during the customer survey period mentioned above, but we do not report data for periods prior to firms’ changes of name and ownership. As a result, some large firms are not listed at all. If only name or ownership changed, we do report the data. Changes subsequent to the dates listed above may not be taken into account. Top Ratings We give checkmarks to firms that score highest on a scoring system that we devise for each service field. Our scoring systems weight the various data in our tables and text based on our subjective judgment of their importance. Since the scores are based entirely on information presented, you can apply your own subjective judgments, and decide whether you prefer firms we have not given checkmarks. Where we do not have important data on a firm, we cannot give our checkmark. How We Gather (and How to Interpret) Our Data