PSYC 3200 Lecture Notes - Lecture 4: Convergent Validity, Factor Analysis, Mathematical Analysis
7 Apr 2016
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Document Summary
A test is valid to the extent that inferences made from it are appropriate, meaningful, and useful. The extent to which a test measures what it purports to measure. Content validity: degree to which questions, tasks, items on a test represent the universe of behavior the test was designed to sample. You must have a solid rationale as to why you have included items on an assessment. Face validity: if a test looks valid, it has face validity. Criterion-related validity: demonstrated when test shown to be effective in estimating examinee"s performance on some outcome measure. Variable of interest is criterion or outcome measure. Concurrent validity: test scores and criterion information obtained simultaneously. Predictive validity: test scores used to estimate outcomes to be measured at a later date. Validity coefficient: relationship between test scores and criterion measures (rxy) Standard error of the estimate: a measure of the accuracy of predictions made with a regression line.
