When a group of individuals is tested in a series of treatment conditions over time, which factor can cause progressive improvement in performance from treatment to treatment and thus provide an alternative explanation for the results?
a. history
b. selection bias
c. practice
d. fatigue
c
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Having an older brother slightly increases the probability that the younger brother develops a gay orientation. That observation supports which of the following as an influence on sexual orientation?
a. Genetics b. Imitation c. Prenatal environment d. Cohorts
Young Tiffany is just starting puberty, and there are several changes occurring in her body. Which of the following would be an example of change in a secondary sexual characteristic?
a. development of her ovaries b. development of her breasts c. development of her vagina d. development of her uterus
The "cognitive revolution"
A. occurred rapidly, within a period of a few years, in response to the attacks on Skinner and the development of computers. B. extended over a long period of time, beginning in the early part of the century, in reaction to Wundt's introspection experiments. C. was a gradual process that occurred over a few decades. D. was not really necessary because the study of the mind has been a constant part of experimental psychology since the founding of the first psychology laboratory.
Suppose a bird fancier breeds robins to have especially large red markings on their
breasts. The gradual increase in red markings that would result is said to be due to (a) artificial selection (b) natural selection (c) sociobiology (d) short-term adaptation