Pre-post designs are threatened by ____.
A)factors related to the passage of time
B)factors related to differences between groups
C)assignment bias
D)differential attrition

Question

Pre-post designs are threatened by ____.
A)​factors related to the passage of time
B)​factors related to differences between groups
C)assignment bias
D)​differential attrition

Quizplus · Accepted Answer

Pre-post designs are threatened by factors related to the passage of time, such as maturation or history effects, which can influence the results independently of the treatment or intervention.

Pre-Post Designs Are Threatened by ____