A Recent Meta-Analysis of 24 Studies Involving the Newer,evidence-Based Family

question 20

Multiple Choice

A recent meta-analysis of 24 studies involving the newer,evidence-based family therapies in the treatment of adolescent substance abuse and delinquency (Baldwin et al.,2012) documented that they:

• A)are better than no treatment but equivalent to treatment as usual.
• B)modestly outperformed treatment as usual.
• C)are much better than treatment as usual.
• D)produced highly variable outcomes,making average estimates of effects difficult to interpret.

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Definitions:

Normally Distributed Random Variable

A variable that follows a normal distribution, characterized by its bell-shaped curve, where its mean, median, and mode coincide.

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values from the mean.

Standard Normal Random Variable

A special case of the normal distribution with a mean of zero and a standard deviation of one.

Probability

The measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.