A Student Used a Nonequivalent Control Group Design to Examine

question 53

Multiple Choice

A student used a nonequivalent control group design to examine the effectiveness of a computer module the library uses to introduce first year students to the library's resources.Which threat to internal validity could she potentially rule out by examining the pretest scores for both groups?

• A)a maturation threat
• B)a regression threat
• C)a selection threat
• D)an instrumentation threat

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Definitions:

CVD

Cardiovascular Disease, a class of diseases that involve the heart or blood vessels.

Relative Risk

A measure used in epidemiology to compare the risk of a certain event occurring in one group with the risk of it occurring in another group.

Sunscreens

Products applied to the skin to protect it from the harmful effects of UV radiation.

Epidemiologic Study

Research investigating the patterns, causes, and effects of health and disease conditions in defined populations.