PSYC 464 Lecture Notes - Lecture 2: Likert Scale, Inter-Rater Reliability, Apa Style
18 Jan 2018
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How much money a person spends on groceries in a month based on receipts l data. What type of food a student purchases from dining areas and vending machines on campus . Reports from parents about what kind of food people ate as children i data. Answers to a healthy foods, healthy people survey s data. Reliability: the psychometric property in which a test gets the same results each time it"s taken. Test-retest (degree to which test results are consistent over time) and inter-rater reliability (when a test requires a rating, the degree of agreement among raters) Validity: the psychometric property in which a test measures what one claims it measures. Face validity (intended to measure what they seem to measure) and construct validity (degree to which a test measures what it claims to measure) If something is valid, it does mean it is reliable, but if something is reliable, it does not mean it"s valid.
