To measure the validity of a psychological test,what might an investigator try to determine?
A)How many psychologists use the test and consider it helpful
B)How many of the items on the test are easy, intermediate, or difficult
C)How consistent people's scores are from test to retest
D)How well the scores predict some other behavior

Question

Quizplus · Accepted Answer

To measure the validity of a psychological test, the best choice is to determine how well the scores predict some other behavior. This is the most direct way to assess whether the test is accurately measuring what it claims to measure. Other factors such as item difficulty, consistency of scores, and professional usage can provide useful information, but they alone cannot determine the validity of a test.

To Measure the Validity of a Psychological Test,what Might an Investigator