Which of the following statements is the MOST debatable?
a. Intelligence is at least somewhat genetic in origin.
b. Genetic factors are strongly implicated as the cause of ethnic differences in intelligence.
c. The average IQ in the lowest social classes is about 15 points lower than the average IQ in the highest social classes.
d. The average IQ for some minority groups in the United States is about 10 to 15 points lower than the average for Caucasians.
B
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What is one likely explanation for why cats and bats evolved a tendency to sleep many hours?
a. They have little risk of being attacked during their sleep. b. They are less physically active during the day than other species. c. They eat diets that are relatively low in calories. d. They have smaller brains, compared to other species of similar size.
Infants who are irritable, have problems eating and sleeping, and have difficulty forming attachments are more likely to have mothers who have ____
a. schizophrenia b. postpartum depression c. no health insurance d. no support from their partners
Among the !Kung, a hunting-and-gathering society living in the desert regions of Botswana, a child's first words generally include words meaning "__________" and "__________."
A) mine; yours B) No; I'll do it myself C) I want it; That belongs to my family D) Here, take this; Give it to me.
In what percentage of households in the United States do women earn as much as their husbands?
a) 25 percent b) 50 percent c) 65 percent d) 80 percent