An experimenter makes the claim that church attendance increases marital happiness. In order to make this claim, the experimenter must have done a(n)

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An experimental study is the only option that can establish causal relationships and test the claim that church attendance increases marital happiness. Other options such as observational, correlational, or survey studies may suggest a relationship between church attendance and marital happiness, but they cannot establish causation.

An Experimenter Makes the Claim That Church Attendance Increases Marital