A Researcher Evaluates a Treatment Effect Using a One-Tailed Hypothesis

question 65

Multiple Choice

A researcher evaluates a treatment effect using a one-tailed hypothesis test with  = .05,and the decision is to reject the null hypothesis.If the researcher switched to a two-tailed test using the same sample,what decision would be made?

• A)Definitely reject the null hypothesis with either  = .05 or with  = .01
• B)Definitely reject the null hypothesis with  = .05 and maybe reject with  = .01
• C)Might reject the null hypothesis with  = .05 but might not
• D)Definitely fail to reject the null hypothesis with either  = .05 or with  = .01

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Definitions:

Behavioral Perspective

A way of looking at psychological issues by studying observable behavior and the effects of learning on behavior.

Praised

The act of expressing approval or admiration for someone or something.

Learning Efforts

The exertion of physical or mental energy towards acquiring knowledge or skills through study, practice, or instruction.

Biological Psychology

A branch of psychology focused on the study of how the brain and other biological systems influence behavior and mental processes.