Suppose you examine an ultrasound image of a fetus, who is sucking her left thumb. Generalizing from research presented in the text, what is the probability that this fetus will be left-handed at age 15?
a. about 50%
b. about 67%
c. about 85 %
d. about 100%
b
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One negative factor to consider regarding breast-feeding is that
a. breast milk can transmit HIV and environmental hazards, such as PCBs, to the infant. b. breast-feeding has been shown to increase mothers' responses to stress. c. breast-feeding increases the risk of early breast cancer. d. there are no negative factors associated with breast-feeding.
Which of the following is the most accurate summary of reinforcement theory?
a. We like people who like us. b. We are more likely to engage in behaviors that have been rewarded in the past than in other behaviors. c. We tend to seek out rewards and avoid punishments. d. We like people who make us feel good about ourselves.
Enkephalins and endorphins are examples of
a. brain disregulators. b. neural inductors. c. neuropeptides. d. ion channeling agents.
Regarding highly creative people, which of the following statements is FALSE?
a. Although people with high IQs can be quite creative, there is generally little correlation between creativity tests and IQ test scores. b. Creative people usually have a very narrow range of knowledge and interests. c. Creative people are good at using mental images and metaphors in thinking. d. Creative people are unconventional and nonconforming primarily in their work, but, otherwise, do not have unusual, outlandish, or bizarre personalities.