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

Question

Quizplus · Accepted Answer

The tendency for students to perform better on the second exam can be attributed to the effects of testing. This refers to the fact that taking the first exam can serve as a practice run, allowing students to become more familiar with the material and better prepared for the second exam. This is a threat to validity because it can affect the accuracy of the results by artificially inflating scores on the second exam. The other options do not apply to this scenario. Experimenter bias involves the researcher unintentionally influencing the results, history refers to external events that can affect the results, and mortality refers to participants dropping out of a study.

Students as a Group Tend to Perform Better on the Second