In Dr. Lu's study of eating disorders, she looked at the academic histories of girls with an eating disorder and girls who did not have such problems. In this example, the girls with eating disorders are the ________ group
a. comparison
b. control
c. criterion
d. treatment
c. criterion
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High ________________ rates suggest rehabilitation through incarceration has not been particularly effective
A. violent crime B. recidivism C. parole D. none of the above
The pancreas secretes a hormone called ______ to regulate the metabolism of fats and carbohydrates
a) insulin b) leptin c) CCK d) ghrelin
Suppose you are interested in how participants perform under different temperature conditions. You randomly select 30 participants and randomly assign them to work in one of three rooms. The rooms differ only with respect to temperature. You instruct all participants to solve the same jigsaw puzzle, and then you measure how long it takes each one to finish. In this research, temperature serves as
the a. condition. c. dependent variable. b. independent variable. d. sample.
The telegraphers studied by Bryan and Harter showed gradual improvement as long
as they operated at the level of letters and words. This lasted about how long? (a) 6 hours (b) one day (c) 7 ± 2 days (d) 24 weeks (e) the gradual improvement was permanent; they stayed at asymptote for years