PSY 380 Lecture Notes - Lecture 4: Frequency Distribution, Likert Scale, Psychometrics
8 Mar 2016
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Document Summary
Manipulate those values to quantify aggregates of those measurements so you can say something about human behavior. Quantitative measurement of psychological traits or attributes. Standardizes process of observing and measuring traits or attributes. Produces test scores which allow evaluator to that represent aspects of sai traits. Summarize data obtained on an individual regarding a sample of behavior. How consistently does it take the measurement its supposed to take. Classifies using categorical description, numbers can not be meaninfully calculated. Code as m=1, f=2 or aa=1, c=2, na=3, etc. No assumptions about how much is better or worse one rank. No absolute zero order is from another. Eg: rating scale, ranking colleges in terms. For likert scale, if you can represent full range or if there is equal magnitude between choices is assumed and choices are symmetrical, can be treated as interval data. Absolutely disagree, disagree, neutral, agree, absolutely agree, Classifies and orders and has an arbitrary zero point with equal.
