Level of significance, sample size, power, and effect size are the four components of:
a. decision theory.
b. exploratory analysis.
c. inference.
d. power analysis.
ANS: D
Cohen identified four parameters of a power analysis: the level of significance, sample size, power, and effect size.
The four components do not constitute decision theory.
Exploratory analysis is a preliminary step in the analysis of data.
Inference is the conclusion or judgment based on evidence.
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