In observational studies, the variable of interest
A) is not controlled.
B) is controlled.
C) must be numerical.
D) cannot be numerical.

Name: In observational studies, the variable of interest A) is not controlled. B) is controlled. C) must be numerical. D) cannot be numerical.
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Question

Quizplus · Accepted Answer

In observational studies, the variable of interest is not controlled. The researcher simply observes and records what is happening without manipulating any variables. Therefore, option A is the correct answer.

In Observational Studies, the Variable of Interest