PSYC37H3 Chapter Notes - Chapter 5: Discriminant
Document Summary
In many settings it is ideal to have a test that looks like it is valid, because these appearances can help motivate test takers since they can see that the test is relevant. Content-related validity: considers the adequacy of representation of the domain the test is designed to over. Factor analysis has been used to determine whether items fit into conceptual domains: construct underrepresentation: describes the failure to capture important components of a construct. if a test of mathematical knowledge included algebra but not geometry, then the validity is low: construct irrelevant variance: occurs when scores are influenced by factors irrelevant to the construct. a test of intelligence might be influenced by reading comprehension, test anxiety, or illness. The belief is that the test scores can predict how well a student will perform in college: one measure occurs earlier, and is meant to predict some later measure.
