Statistical regression, as a threat to internal validity, refers to
a) The shift of statistical significance as the number of participants increases
b) The tendency of modal responses to move away from the center of the distribution
c) The inability of certain designs to detect statistically significant difference, should they exist
d) The tendency of extreme scores to move toward the mean of the distribution when a measure is readministered
Correct Answer: c
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cross-sectional research. representative samples. longitudinal research. sequential research.
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Indicate whether the statement is true or false.