In Research Reported in Your Text, an Analysis of 400

question 77

Multiple Choice

In research reported in your text, an analysis of 400 controlled studies evaluating the effectiveness of psychotherapy found that the average person receiving therapy did better than approximately what percentage of people placed on waiting lists for therapy?

• A)30%
• B)50%
• C)60%
• D)80%
• E)93%

---

Definitions:

Factor A

A term used in experimental design and analysis to denote one of potentially several independent variables being studied for its impact on a dependent variable.

Null Hypothesis

A statement in statistical analysis that proposes there is no significant difference or effect, intended to be tested against an alternative hypothesis.

Research Hypothesis

A statement suggesting a potential outcome or association that a study is designed to investigate, often proposing how two variables are related.