The average verbal SAT score for the entire class of entering freshmen is 530 . However, if you select a sample of 20 freshmen and compute their average verbal SAT score you probably will not get exactly 530 . What statistical concept is used to explain the natural difference that exists between a sample mean and the corresponding population mean?
a. Statistical error c. Sampling error
b. Inferential error d. Parametric error
C
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A nonexperimental research design must be used to study which of the following situations?
A. the extent to which changes in a dependent variable are caused by the manipulation of an independent variable B. an analysis of the words used in presidential speeches in times of war at different times in history C. the extent to which political affiliation (Republican, Democrat) is related to differences in one's concern for the economy D. an analysis of fruit intake among children who live in poverty prior to and following an initiative to improve the availability of fruits in impoverished communities
According to Schopenhauer, ____ suffer the most.
a. intelligent humans b. unintelligent humans c. nonhuman animals d. plants
According to arousal theory, which of the following statements is FALSE?
a. An individual becomes uncomfortable when arousal is too low or too high. b. The right mix of activities prevents boredom and overstimulation. c. The arousal theory explains the activation of our learned needs for achievement and power. d. Most adults vary their activities to keep arousal at a comfortable level of activation.
Creativity may be fostered in schools by
a. teaching boys and girls separately so that gender-related distractions are minimized. b. rewarding children who improve their own creativity. c. encouraging exploration and self-paced learning. d. teaching about the importance of convergent thinking.