Why Must a Control for Spontaneous Remission Be Included in Assessments

question 10

Multiple Choice

Why must a control for spontaneous remission be included in assessments of the effectiveness of psychotherapy?

• A) Because people can get better without therapy.
• B) Because researchers may incorrectly assume that improvement was due to therapy.
• C) Because researchers can assess if improvement was significantly greater for treated people.
• D) All the answers are correct.

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Definitions:

Mean Score

The average score obtained by adding all the individual scores in a set and dividing by the total number of scores.

Confidence Interval

A range of values, derived from the sample data, that is likely to contain the value of an unknown population parameter.

Standard Deviation

Indicates the dispersion or variability within a set of numerical values around their average.

Mean Balance

The average amount of money held in an account over a certain period.