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A Confound Occurs When

Question 48

Multiple Choice

A confound occurs when


A) two or more independent variables exert their influence on a dependent variable at different times.
B) an experimental investigation lacks external validity.
C) two or more independent variables exert their influence on a dependent variable at the same time.
D) the results of an experiment are not significant.
E) one independent variable exerts an influence on a dependent variable.

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