Statistical studies in which researchers do not control variables of interest are
A)experimental studies
B)uncontrolled experimental studies
C)not of any value
D)observational studies

Question

Quizplus · Accepted Answer

Observational studies are statistical studies in which researchers do not control variables of interest. In contrast, experimental studies involve manipulating variables to observe their effects, and uncontrolled experimental studies may involve manipulating variables but not controlling for other potential confounding factors. Observational studies can still have value in identifying associations between variables, but they cannot establish causation.

Statistical Studies in Which Researchers Do Not Control Variables of Interest