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

question 286

Multiple Choice

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

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

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Definitions:

Mercury

A heavy, silvery d-block element that is liquid at standard conditions for temperature and pressure, used in thermometers, barometers, and other devices.

Atomic Symbol

A one or two-letter abbreviation derived from the English or Latin name of an element, representing it in the periodic table.

Atomic Symbol

A one or two-letter notation derived from the Latin name of an element, used to represent it in the periodic table and chemical equations.