Following his review of a number of large data sets obtained from measures widely used in psychology research, Micceri concluded that most of the distributions
A) closely approximated the normal curve.
B) were skewed to the left due to pronounced ceiling effects.
C) were much flatter (kurtotic) than the normal curve.
D) were not normal.
Question 2
Professor Q has designed a repeated measures experiment. Which information does he NOT need when looking up the power of his planned study in a power table?
A) whether a one- or two-tailed test will be computed
B) number of difference scores
C) estimated population variance of difference scores
D) effect size
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