A causal-comparative study requires
A) a researcher manipulated grouping variable.
B) established groups that differ on some variable.
C) beginning with effects and investigating causes.
D) three or more levels of grouping variable and one dependent variable.

Question

Quizplus · Accepted Answer

A causal-comparative study compares pre-existing groups that differ on some variable, without any manipulation by the researcher. Options A, C, and D refer to other types of studies.

A Causal-Comparative Study Requires