Even tiny amounts of __________ in the paternal bloodstream cause a dramatic change in the sex ratio of offspring
A) lead
B) dioxin
C) mercury
D) PCBs
B
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According to Eisenberg and colleagues, when children and adolescents are given prosocial dilemmas, in which they choose between benefiting themselves only or helping others,
a. young children are able to engage in the most sophisticated level of prosocial reasoning. b. adolescents tend to think only of themselves and ignore other people’s needs. c. guilt is the only emotion that seems to motivate prosocial actions. d. both feeling guilty for not helping and taking the perspective of another person become more common in late middle childhood and early adolescence.
Genia suffers from insomnia. She is determined to fall asleep. Which outcome is most likely?
a. Her determination will eventually pay off. b. Her determination will have no effect on the process. c. Forcing sleep is the only way to cope. d. Her effort will heighten autonomic activity and muscle tension which delays sleep.
According to the Flynn effect, for at least several generations
A) the IQ scores of the children are higher than those of their parents. B) the IQ scores of the children are lower than those of their parents. C) the IQ scores of both children and parents have remained about the same. D) there is no correlation between the IQ scores of children and their parents.
In the experimental method, the _____ is sometimes referred to as the treatment
a) independent variable b) dependent variable c) confounding variable d) heuristic value