Psychology 1000 Lecture Notes - Lecture 87: Internal Validity, Criterion Validity, Concurrent Validity

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

External validity: internal validity describes the extent that a study is able to show a cause-effect relationship between the variables tested in the study. External validity describes the extent that the results of a study can be generalized or repeated in multiple settings. Test validity is an indicator of how much meaning can be placed upon a set of test results: criterion validity assesses whether a test reflects a certain set of abilities. Is the test valid criterion validity refers to whether a variable is able to predict a certain outcome. Concurrent validity measures the test against a benchmark test and highcorrelation indicates that the test has strong criterion validity. Concurrent validity measures how well a test matches up with a benchmark test, which is usually another valid measure of the same construct. Predictive validity is a measure of how well a test predicts abilities.