Researchers who taught a gorilla named Koko to use sign language found that through age 5 her vocabulary was ________ the spoken vocabulary of a human 5-year-old and was ________ than the vocabulary of a deaf 5-year-old child using sign language
a. smaller than; larger than
b. smaller than; about the same as
c. about the same as; larger than
d. smaller than; smaller than
Answer: b
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A researcher has collected nationwide data for the age of mothers at the time they give birth and the incidence of Down syndrome. What relationship between maternal age and Down syndrome is this researcher likely to find?
a. a very weak relationship b. incidence of Down syndrome increases among those born to mothers who are older c. incidence of Down syndrome decreases among those born to mothers who are older d. incidence of Down syndrome increases among mothers under the age 35
In a symmetrical binomial probability distribution, the greatest frequency of scores is near the a. ends of the distribution
b. center of the distribution. c. top of the distribution. d. bottom of the distribution.
One study of attitudes among Asian and Pacific Island Americans toward physician-assisted suicide found that
a. such attitudes tended to be associated with religious factors b. acculturation to the dominant culture influenced such attitudes c. were most hostile among sub-groups with the worst health status and theshortest life expectancy among study populations d. all of these e. none of these
You are stuck on a desert island with a group of people after your three-hour cruise turned into a shipwreck. If you must help only one other person to survive, whom will you choose, according to the evolutionary theory of helping behavior?
A. The Professor, who is most fit B. Gilligan, your brother C. Maryann, who is the youngest D. Thurston, who has the most money