Between the administration of a pretest and a posttest, an event may occur that can affect the results of the study independent of the treatment program being evaluated. This threat to internal validity is called
A)history
B)regression
C)testing
D)maturation

Question

Quizplus · Accepted Answer

The "history" threat to internal validity refers to events that occur between the pretest and posttest that can affect the results independently of the treatment.

Between the Administration of a Pretest and a Posttest, an Event