In a true experiment on anxiety and electric shock, 15 people drop out of the experimental group while one person drops out of the control group. This differential drop out rate reflects what potential problem(s) for the study? (circle all that apply)
A) sampling error
B) selection
C) mortality
D) low generalizability
E) none of the above

Question

Quizplus · Accepted Answer

The differential drop out rate reflects a potential problem of mortality, as more participants dropped out of the experimental group than the control group. This may bias the results and limit the generalizability of the findings. Sampling error and selection are not necessarily affected by drop out rates, and it is not clear if there is a problem of low generalizability without further information.

In a True Experiment on Anxiety and Electric Shock, 15