Which statement accurately describes effect size?
a) An effect size refers to the statistical significance of an effect.
b) An effect size refers to the magnitude of a difference between groups.
c) An effect size refers to the influence of the experimenter.
d) An effect size refers to the physical size of a manipulation.
Question 2
A Type I error refers to
a) The probability of accepting the null hypothesis when it is true
b) The probability of rejecting the null hypothesis when it is false
c) The probability of accepting the null hypothesis when it is false
d) The probability of rejecting the null hypothesis when it is true
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