Participants Were Randomly Allocated to One of Two Stress Management

question 14

Multiple Choice

Participants were randomly allocated to one of two stress management therapy groups, or a waiting list control group. Their baseline levels of stress were measured before treatment, and again after 3 months of weekly therapy sessions. Based on the output below, which of the following statements is the most accurate?

• A)Levene's test was non-significant, F(2, 12) = .82, p = .47, and so the results must be treated with caution.
• B)The type of therapy given did not have a significant effect on stress levels, after baseline stress level had been accounted for, F(2, 11) = 5.98, p = .52.
• C)The type of therapy administered had a significant effect on stress levels, even after baseline levels of stress had been accounted for, F(1, 11) = 23.16, p < .001.
• D)The type of therapy administered had a significant effect on stress levels, even after baseline levels of stress had been accounted for, F(2, 11) = 5.98, p = .017.

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