After years of studying the harmfulness of marijuana, scientists have concluded that frequent marijuana use can cause all of the following EXCEPT
a. a decrease in the brain's ability to cope with pain and stress.
b. some loss of coordination, concentration, and memory function.
c. an increased risk of prostate and cervical cancer.
d. a higher risk of developing psychosis.
ANSWER: a
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Four-year-old Gretchen, from an impoverished home, may achieve a higher IQ from attending Head Start than not attending
Indicate whether the statement is true or false
The observation that a smaller number of infants are shy in contrast to the 40% of shy college students suggests that
a. shyness is an inherited temperament. b. babies are adept at hiding their shyness. c. shyness is mostly consistent over the lifetime of a person. d. adult shyness may reflect inherited and learned influences. e. the experience of college elicits shyness.
Marcia just spent half an hour playing a violent video game, while her friend, Janet, flipped through a teen magazine. When they turn on the TV, they see a news clip of rioters attacking women and children with machetes and clubs. Based on research, it is
A) Marcia is less affected by the real-life violence than Janet. B) Marcia and Janet are equally alarmed and disturbed by the violence. C) Marcia is more affected by the real-life violence than Janet. D) Neither Marcia nor Janet is disturbed by the news clip.
Which of the following individuals is most likely to have fraternal twins?
A) Marlie, a 25-year-old Caucasian American B) Janie, a 30-year-old Caucasian American C) Asuka, a 30-year-old Japanese D) Rhoda, a 30-year-old African