A Study in Ontario Found That Multisystemic Therapy (MST)was Not

question 54

Multiple Choice

A study in Ontario found that multisystemic therapy (MST) was not more effective at reducing recidivism than providing usual services for high-risk youth.According to your text,which of the following statements was suggested as a potential explanation for this unexpected finding?

• A)The study did not include a follow-up period.
• B)The usual services group was at much lower risk to reoffend at the beginning of the study.
• C)MST may have benefited youths on factors that were not included in the study.
• D)The researchers failed to include a control group,so no explanation is possible.
• E)all of the above

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Definitions:

Null Hypothesis

A hypothesis that states there is no effect or no difference, and it serves as the default assumption to be tested in hypothesis testing.

Difference Score

The result of subtracting one quantity from another, often used to measure change or effects in experimental designs.

T-test

A statistical test used to determine if there is a significant difference between the means of two groups, which may be related in certain features.

Critical Value

A threshold value in statistical testing used to determine whether to reject the null hypothesis.