Psychology 2080A/B Lecture Notes - Face Validity, Discriminant

• School: Western University
• Department: Psychology
• Course: Psychology 2080A/B
• Professor: Doug Hazlewood

Document Summary

Defining validity: validity is the agreement between a test score or measure and the quality it is believed to measure, the definition of validity has gone through several iterations over time, but now has three types of. In other words, to what extent does a test accurately measure what it is intended to measure? evidence: construct-related, criterion-related, content-related, validity exists in overlapping categories, such as face, predictive, and criterion validity. Criterion-related evidence for validity: criterion validity evidence tells us just how well a test corresponds with a particular criterion, an example is a test used to predict the marital success of engaged couples. Indicated by high correlations between a test and a well-defined measure premarital test is a stand-in for estimating future marital happiness. Pr edictive and concur r ent evidence: predictive evidence examines the extent to which a given test can anticipate future occurrences.