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A researcher wants to investigate the effect of cognitive-behavioral therapy (CBT) on depression. To do so, the researcher gives one group no CBT, one group

A researcher wants to investigate the effect of cognitive-behavioral therapy (CBT) on depression. To do so, the researcher gives one group no CBT, one group a technique called "watchful waiting", and one group CBT. Which hypothesis test is appropriate for this study?

A.Pearson correlation

B.ANOVA

C.Repeated-measures t-test

D.Independent-samples t-test

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