In order to gain greater confidence that a cause-and-effect relationship exists,which of the following must be performed?
A) experiment
B) correlational study
C) Pearson r
D) case study

Question

Quizplus · Accepted Answer

An experiment allows for manipulation of a variable and control of other variables, thereby allowing for a stronger determination of cause-and-effect relationships. Correlational studies and Pearson r only indicate a relationship between variables, but cannot establish causality. Case studies are based on a small, specific sample and may not be generalizable to a larger population, making it difficult to establish cause-and-effect relationships.

In Order to Gain Greater Confidence That a Cause-And-Effect Relationship