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.
D
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A repeated-measures study uses a sample of n = 15 participants to evaluate the mean differences among four treatment conditions. In the analysis of variance for this study, what is the value for dfbetween treatments?
a. 3 c. 5 b. 4 d. 59
When children are able to understand social interactions, including the causes and consequences of behavior, they have acquired a measure of
concrete operational thought. reversibility. social cognition. self-control.
Brain recording and brain imaging techniques have allowed scientists to link brain function to ______.
A. cognition B. movement C. speech D. disease
At what age do most females reach adult height?
a. 20 b. 21 c. 18 d. 16