Sometimes, Pretest and Posttest Measures Are Records Taken by Observers

question 60

Multiple Choice

Sometimes, pretest and posttest measures are records taken by observers who improve their skills with practice. In this case, pretest-posttest changes could be due to program effectiveness or to the threat to internal validity called

• A)instrumentation
• B)testing
• C)attrition
• D)maturation

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Definitions:

Experimental Group

In research, a group of subjects who are exposed to the variable under investigation, contrary to the control group, to assess the effect of that variable.

Treatment Group

A group of participants in an experiment that receives the intervention or treatment under investigation.

Informed Consent

A process in which individuals are fully informed about the procedures and risks of a treatment, study, or activity before agreeing to participate.

Proxy Permission

The authorization granted by one person for another to act on their behalf, often used in the context of medical treatment or research consent.