PSYC 473T Chapter 4: ch. 4 personality assessment
6 Feb 2017
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Document Summary
The measurement of the individual characteristics of a person. The most commonly method to study personality used are personality tests. Test reliability: generalizability across time, items, and raters: reliability is a prerequisite for validity, reliability. The estimate of how consistent a test is. A good test gives consistent results over time, items, or raters. The extent to which test scores are consistent and reproducible with repeated measurements. Repeated at different times, across multiple items, or using multiple judges or observers. Take the test a second time to see fi their scores are similar. See if different items of the test give similar results. Estimates the generalizability of the score from one set of items to another. Researchers will try to make sure they have an alpha of at least . 70-. 80. Have two separate judges rate the personality or behavior of a third person. Calculate the average correlation among the scores of all raters or the percentage agreement among raters.
