Loss of subjects in a given experiment constitutes a probable threat to the internal validity of the study if:
A) those lost are representative of their original groups
B) a greater number are lost from one group than from the other(s)
C) losses are not randomly replaced
D) statistical adjustments are not made

Question

Quizplus · Accepted Answer

Loss of more subjects from one group than from the others can lead to unequal groups, potentially biasing the results and threatening the study's internal validity by affecting the comparability of the groups.

Loss of Subjects in a Given Experiment Constitutes a Probable