Dr. Simpson's students were rightfully upset when he used very accurate weight scales to determine their grades in a Developmental Psychology class. What did Dr. Simpson's method of assessment lack?
A) sufficient sample size
B) reliability
C) validity
D) the ability to identify practice effects

Question

Quizplus · Accepted Answer

Dr. Simpson's method of using weight scales to determine grades lacks validity, which means it does not accurately measure what it is intended to measure (in this case, the students' understanding of developmental psychology concepts and their ability to apply them).

Dr Simpson's Students Were Rightfully Upset When He Used Very