Which of the following pairs of animals best illustrates the technique called yoking?
a. Rat A and Rat B must take turns pressing a bar to earn pellets.
b. Rat A presses a bar for pellets, and Rat B is also given one every time Rat A earns one.
c. Rat A presses the bar, but Rat B gets all the pellets.
d. Rat A and Rat B must share one dish of pellets, and are only given more if both rats eat an equal amount.
Ans: b
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In an example in Chapter 10 we found that the relationship between how a student evaluated a course, and that student's expected grade was significant. In this chapter Grade was not a significant predictor. The difference is
a. we had a new set of data. b. grade did not predict significantly once the other predictors were taken into account. c. the other predictors were correlated with grade. d. both b and c
Dr. Nolen wants to know the effects of removing portions of one's hippocampus on long-term memory, in the hopes of one day finding a cure for patients with Alzheimer's disease
The subjects for his study are most likely to be A) humans. Incorrect. Although it would probably be most useful for the treatment of Alzheimer's disease to conduct this research on human beings, there is no ethical way this could be occur. B) nonhuman animals. C) robots. D) insects.
In the between subjects factorial ANOVA, the term n in the calculation formulas refers to the number of _____
a. levels of both variables combined c. subjects in each cell b. participants in the experiment d. subjects in each column
By middle childhood, obesity is a risk factor for __________.
A. malnutrition B. ADHD, primarily hyperactivity-impulsivity type C. schizophrenia D. a variety of emotional and behavior problems