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Ch. 2 – Sociologists Doing Research Research Methods • Goal is to test common sense assumptions & replace false ideas w/ fact & evidence • Limited Ability to set up lab experiments to replicate real-life conditions – Therefore the world is a Sociologist lab • Quantitative Research – uses numerical data – Surveys, precollected data • Qualitative Research – rests on narrative & descriptive data Surveys • Make up about 90% of published research • Most widely used method • If sample is not representative then results can not generalize the population – Most common way to get a representative sample is by picking at random • Can be in either questionnaire or interview format • U.S. Census, Gallop Poll, and Harris Poll are all nationally recognized surveys in the U.S. Close ended questions Results can be measured more precisely Expensive to produce and distribute Easily comparible Responses are limited to preset answers Statistic techniques can be used to put order to data People don’t respond, leading to low cost effectivness Large number of responces can be collected Phrasing can influence answers Open ended questions are answered in participants own words Secondary Analysis • Using precollected data for research • Census Bureau – total population every 10 years, and specific surveys every year • U.S. Department of Labor – income and unemployment • U.S. Department of Commerce – monthly reports on various aspects of the economy • Emile Durkheim relied on precollected data for his research on suicide Advantages Inexpensive, high quality data Disadvantages May not be exactly suited for the researchers purposes Existing info. Allows for Can be out dated studies over a long period of time Researchers can not influence the participants or data Don’t know the exact methods of collection Field Research • Looks closely at aspects of social life that can’t be measured quantitatively, & are best understood in natural settings – High school cliques • Case Studies – a thorough investigation of a single group, incident, or community • Participant observation – researcher becomes a member of the group being studied, & might or might not tell the group he is studying – Black Like Me by John Howard Griffin (1961), the author died his skin to study African American life in the South Causation in Science • Causation – events occur in a predictable, nonrandom way; one event leads to another • Multiple causation – an event occurs as a result of several factors working in combination – Causes of crime – Cesare Lombroso, 19th century, Italian criminologist believed the tendency to commit crime was inherited – Therefore criminals could be identified by certain traits, large jaws, or receding foreheads – Modern criminologists – peer pressure, drugs, poverty, poor parenting • Quantitative variables – can be measured & given a numerical value • Qualitative variables – are identified by membership to a category – Either / or, yes / no • Sex, marital status, group membership • Independent variables – cause something to occur • Dependant variables – result from a change in the independent variable – How does the time spent studying change the grade earned? • Intervening variable – influences the relationship b/w independent variable and dependent variable Correlation • How things are related to one another • Positive correlation – both ind. and dep. variables change in the same way • Negative correlation – variables change in opposite directions • Spurious correlation – apparent relationship b/w 2 variables is actually caused by a 3rd variable – Church attendance and delinquency • Just because there is correlation does not guarantee causation • Standards for showing causation 1. 2 variables must be correlated 2. All other possible factors must be taken into account 3. A change in the independent variable must occur before a change in the dependent variable can occur Procedures and Ethics in Research • Scientific Method 1. Identify the Problem 2. Review the literature 3. Formulate hypotheses – testable statement of relationships among well-defined variables 4. Develop a research design 5. Collect data 6. Analyze data 7. State findings & conclusions • Many Sociologists do not follow these steps to the letter. – Exploratory research, changing hypotheses during the study • Ethics - a system of moral principles – Showing objectivity – using superior research standards – reporting findings and method truthfully – Protecting rights, privacy, integrity, dignity, and freedom of research subjects Mean – the average of a series of numbers Median – the middle number in a series of numbers •If series has and odd number of numbers it is the middle number •If series is ever you add the 2 middle numbers and divide by 2 Mode – the number in the series that reoccurs most frequently 1, 5, 3, 8, 1, 6, 4, 1, 5 Mean – 3.77 Median – 4 Mode - 1