Participants Were Randomly Allocated to One of Two Stress Management

question 16

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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