A chi-square test for goodness of fit is used to examine the distribution of individuals across four categories, and a chi-square test for independence is used to examine the distribution of individuals across the six categories in a 2×3 matrix of categories. Which test has the larger value for df?
a. The test for goodness of fit
b. The test for independence
c. Both tests have the same df value.
d. The df value depends on the sizes of the samples that are used.
A
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A. the result failed to reach statistical significance. B. the result reached statistical significance. C. the result was reliable between groups. D. the result established a cause-and-effect relationship.
Most developmentalists agree that maturation of the part of the brain called the ______ is a factor in the development of an infant's social smile and first laughter, and it is directly connected to emotional self-regulation
Fill in the blank with correct word
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A. turnover. B. aggression. C. counterproductive work behavior. D. organizational citizenship behavior.
One possible explanation for why conditioned suppression occurs in rats is that
a. they attempt to run away when presented with a signal for shock. b. they freeze when presented with a signal for shock. c. they develop an aversion to food pellets paired with shock. d. they attack the signal that predicts shock.