Chapter 7 Measuring of data
... have no inherent meaning. The number 2 clearly
does not mean “more than” 1. It would be perfectly
acceptable to reverse the code and use 1 for females
and 2 for males. The numbers are merely symbols رمز
that represent two different values of the gender
attribute. Indeed, instead of numeric codes, ...
... Explain the concept of central tendency and describe the characteristics of the mean.
Explain the concept of variation and describe the characteristics of a standard deviation.
Explain the relationship between the standard deviation and the normal curve.
Explain the concept of relationship and descr ...
Lecture10 - University of Idaho
... Exam Tuesday of Next Week
Will cover all lecture material, all material in
Howell Chapters 1-5, broad concepts
assumptions from Howell Chapters 6-11
Questions about material covered in Lecture 9
The Normal Distribution
PSYC 3443 Abnormal Psychology, Fall 2007
... questions as part of your studying to make sure that you will be able to answer the essay in the
allotted time. Remember that short answer essay questions must be answered in full sentences,
using clear writing. That means no outlines, abbreviations, bullet points, or lists should be used.
1. There ...
Flowers for Algernon
... “Flowers for Algernon” - Terminology
A series of ten, standardized inkblots. Some of the inkblots are black or gray, and others include color. The
scoring of responses is determined by various factors:
what the subject thinks he or she sees in the inkblot
the place within the blo ...
... • Rank data and exact difference between the
rankings are known
• For ex. time to complete tasks
• Human characteristics must be converted to a
number that falls into percentile ranks on a
• When in doubt treat data as ordinal e.g. words
recalled – are some easier to recall,
Psychometrics is a field of study concerned with the theory and technique of psychological measurement. One part of the field is concerned with the objective measurement of skills and knowledge, abilities, attitudes, personality traits, and educational achievement. For example, some psychometric researchers have, thus far, concerned themselves with the construction and validation of assessment instruments such as questionnaires, tests, raters' judgments, and personality tests. Another part of the field is concerned with statistical research bearing on measurement theory (e.g., item response theory; intraclass correlation).As a result of these focuses, psychometric research involves two major tasks: (i) the construction of instruments; and (ii) the development of procedures for measurement. Practitioners are described as psychometricians. All psychometricians usually possess a specific qualification, and while most are psychologists with advanced graduate training, many work for the government or in human resources departments. Others specialize as learning and development professionals.