Students as a group tend to perform better on the second exam.This is similar to ____,which is a threat to validity
A) the regression effect
B) effects of testing
C) history
D) mortality

Question

Quizplus · Accepted Answer

The effects of testing refer to the phenomenon where participants tend to perform better on a test the second time they take it due to familiarity with the format and content of the test. This is a threat to validity because it can affect the accuracy of results, making it difficult to determine whether any changes in performance are due to the intervention being studied or simply the result of getting better at taking the test.

Students as a Group Tend to Perform Better on the Second