Statistical studies in which researchers control variables of interest are
A)experimental studies
B)control observational studies
C)non-experimental studies
D)observational studies

Question

Quizplus · Accepted Answer

Experimental studies involve controlling the variables of interest to determine cause-and-effect relationships, whereas non-experimental studies generally do not involve such control. Observational studies can be either experimental or non-experimental, depending on whether the researchers manipulate the independent variable(s). Control observational studies are not a commonly recognized type of study design.

Statistical Studies in Which Researchers Control Variables of Interest Are