What is the correlation between mother's weight and birth weight?
a. The closer that the mother gains toward the gestational weight gain, the lower the risk of a low birth weight.
b. The closer that the mother gains toward the gestational weight gain, the greater mean birth weight.
c. Neither A nor B: Gestational weight gain does not affect birth weight.
d. Both A and B: Gestational weight gain lowers the risk of low birth weight which raises the mean birth weight.
d
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The _______ test is based on calculating the difference between two sets of scores, making a note of the sign of the difference (positive or negative) and then ranking the differences from lowest to highest ignoring whether they are positive or negative.
A. Wilcoxon rank-sum test B. Mann–Whitney U test C. Dependent D. Wilcoxon signed-rank test
The Quality School approach believes that all human beings have five basic needs. What is the basic need that correlates with the premise that “we will work hard for those we respect and who respect us”?
a. Freedom b. Love c. Survival d. Power
Explain why it is important for researchers to focus on only a few aspects of a problem at one time rather than to examine several aspects of a problem within the framework of a single study
What will be an ideal response?
The prediction of Y from Variable X would be least accurate when the correlation between X and Y is
a. 75. b. .95. c. .99. d. –.80. e. –1.00.