PSYC 3250 Chapter Notes - Chapter 9: Base Rate, Tums, Meta-Analysis

• School: University of Guelph
• Department: Psychology
• Course: PSYC 3250
• Professor: Deborah Powell

Document Summary

Accuracy of decisions in directly linked to the validity of test scores. Simplest method to test validity is to correlate test scores with measures of success or with outcomes of decisions: these measures are referred to as criteria, this is where criterion-related validity comes from. Establishes whether test will reduce decision errors and whether gains are worth the cost of testing. Criterion-related validity: degree to which test scores can be used to predict criteria decision (the criterion) Criterion is a measure that could be used to determine the accuracy of a prediction o. In previous example, this could be a measure of gpa for individuals who were accepted into a program. Example with the military"s armed services vocational aptitude battery (asvab) demonstrates importance of appropriate criterion measures: was consistently correlated with success in military training course, however, it was used to predict performance on the job until the 1980"s. Two general methods for assessing criterion-related validity: predictive.