When there is differential drop out between groups in a study, this problem is called:
A) Maturation effect
B) Differential attrition
C) History effect
D) Testing effect

Question

Quizplus · Accepted Answer

Differential attrition occurs when there is a difference in the dropout rate between groups in a study. This can lead to bias in the results, as the groups may no longer be comparable.

When There Is Differential Drop Out Between Groups in a Study