When Diehl and Stroebe Gave Their Brainstorming Groups Extra Time

question 14

Multiple Choice

When Diehl and Stroebe gave their brainstorming groups extra time to work,

• A) they still did not perform as well as the nominal groups.
• B) they were as effective as the nominal groups.
• C) they surpassed the nominal groups.
• D) they did not experience free riding.

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Definitions:

Internal Validity

The degree to which the results of a study are due to the independent variable, rather than other factors.

One-group Pretest-posttest Design

An experimental design where a single group of participants is measured before and after an intervention, lacking a control group for comparison.

Statistical Regression

A measure of the relationship between the mean value of one variable and corresponding values of other variables.

One-shot Case Study

An experimental design where a single group is exposed to a treatment and then measured to assess its effect, lacking a control group for comparison.