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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Definitions:

Dull Lectures

Boring or unenthusiastic presentations or talks, often resulting in little interest or engagement from the audience.

Marginal Cost

The rise in expense associated with the production of an extra good or service unit.

Marginal Rate of Substitution

The measure of how much of one good a consumer can give up in favor of another, without impacting their level of well-being.

Socially Efficient

A situation in which an outcome benefits society as a whole and resources are allocated in the most beneficial manner from a societal perspective.