The major weakness of cohorts in evaluation research is:
A)an over reliance on randomization.
B)a lack of controls for the effects of history.
C)an over reliance on statistical controls.
D)staff resistance.

Question

Quizplus · Accepted Answer

Cohorts in evaluation research often lack controls for the effects of history, which means they may not account for external events or changes over time that could influence the outcomes being studied. This can make it difficult to determine whether observed changes are due to the intervention being evaluated or to these external historical factors.

The Major Weakness of Cohorts in Evaluation Research Is