The Double-Blind Procedure Strengthens the Internal Validity of a Study

question 136

Multiple Choice

The double-blind procedure strengthens the internal validity of a study because:

• A) it creates more confounding variables in the experiment so the experimenter can be assured of validity.
• B) it insures that a given sample is representative of the population from which it is drawn.
• C) it eliminates the problem of the participants' social desirability bias.
• D) it minimizes the effect of experimenter or participant expectations on the outcome of an experiment.

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Definitions:

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Hierarchy of Effects

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Consumer's Ability

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