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

question 52

Multiple Choice

A researcher evaluates a treatment effect using a one-tailed hypothesis test with α = .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 α = .05 or with α = .01
• B)Definitely reject the null hypothesis with α = .05 and maybe reject with α = .01
• C)Might reject the null hypothesis with α = .05 but might not
• D)Definitely fail to reject the null hypothesis with either α = .05 or with α = .01

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