A researcher is interested in variables that may affect an individual's driving ability. He has people drive a course in wet, dry, and icy conditions. In addition, he has them drive a vehicle with or without power steering, and with an automatic or a manual transmission. This design is an example of a ________ factorial.
A. 2 × 2 × 2
B. 3 × 2
C. 2 × 2
D. 3 × 2 × 2
Answer: D
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Which idea offers an explanation for the existence of homosexuality based on Schachter's theory of emotion?
a. Sternberg's triangular theory of love b. social constructionist theory c. the notion of "exotic becomes erotic" d. the Coolidge effect
Fertilization normally takes place in the uterus
a. True b. False Indicate whether the statement is true or false
Which of the following is most clearly under the control of a circadian rhythm in most animals?
a. sleep b. storage of body fat c. migration d. mating
Francesca is at a casino watching a game involving dice. She determines that one of the dice is loaded, causing it to turn up “3” more often than would be expected by chance. To know for certain if this was true, Francesca would have to conduct a study to determine if her findings have statistical ____
a. ?significance b. ?power c. ?validity d. ?generalizability