A statistical measure of the degree to which two variables are associated is called a ________
a. correlation coefficient
b. standard deviation
c. significance
d. probability
Answer: a
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Researchers have observed that women who wear bras for more than 16 hours a day are more likely to develop breast cancer than those who spend less time in a bra. In other words, there is a correlation between wearing a bra and breast cancer. Based on this finding, which of the following statements is true?
A. Wearing a bra causes cancer. B. All women should avoid wearing a bra for more than 16 hours a day. C. There is no relationship between wearing a bra and breast cancer; these data are clearly flawed. D. Some additional variable may serve to explain the relationship observed between wearing a bra and developing cancer.
What is known about episiotomy?
a. It is an essential part of the delivery process. b. It is more common with second and later pregnancies. c. It is controversial and not always practiced. d. It is never necessary and should never be used.
Analyzing antecedent situations related to the desired and competing behaviors involves identifying:
a. the discriminative stimulus and cues for each behavior b. the reinforcers for each behavior c. the distinguishing stimulus for each behavior d. all of these
After doing extremely well on test of mathematics achievement, Jacinda is surprised when she receives an unexpected award. Based on research by Eisenberg and Cameron (1996) you can predict she will:
a. become less motivated than someone who expected to receive an award b. show no change in her intrinsic motivation to do well at math c. no longer show intrinsic motivation regarding math d. show increased motivation to do well at math