PSY-33 Lecture Notes - Lecture 1: Face Validity, Criterion Validity
Document Summary
Theoretical assumption: when confronted with a vague stimulus and required to respond in some manner, people cannot help bur reveal information about themselves. Usually direct questions regarding the person"s opinion of him or herself. Reliability: refers to a measure"s stability, consistency, and accuracy. There will always be a certain degree of error or noise. The goal in test construction is to reduce, as much as possible, the amount of. There are two main sources of error. Imprecision of psychological testing methods, particularly measures of. Test-retest: administer the test and then repeat on a second occasion. The personality vs. other measures [e. g. iq tests] measurement error reliability coefficient is calculated by correlating the scores across the two occasions of the issue of memory or practice effect. Alternate forms: create parallel forms of the test, you can then retest with less. Problem: there is still some carry-over effect of the process of having been tested.
