Drugs such as Xanax and Valium are classified as _____
a) narcotics.
b) barbiturates.
c) amphetamines.
d) minor tranquilizers.
Answer: d
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Which statement is true regarding changes in the rate of teenage pregnancy?
A. Teenage pregnancies have decreased with increased sex education, especially abstinence programs taught in the school system. B. The number of teenage pregnancies has remained unchanged over the past 5 years. C. The number of teenage pregnancies has decreased significantly over the past two decades. D. The number of teenage pregnancies has increased by 25 percent over the past two decades.
When a false negative rate is high, test makers may
a. re-norm the test. b. add items to the test. c. lower the cutoff. d. increase reliability.
Which statement best describes Kaufman's (2001) findings on the pattern of IQ change from young adulthood though old age generated by cross-sectional studies?
a. IQ scores peak in young adulthood (age 20-30) and decline steadily through middle age (40-50) and old age (80-90). b. IQ scores rise gradually until middle age (age 40-50) then decline slowly until old age (around 80) when the decline accelerates. c. IQ scores remain fairly constant across the lifespan. d. IQ scores increase gradually between young adulthood (age 20-30) and old age (80-90).
A theory that encompasses one or two phenomena is comprehensive
Indicate whether the statement is true or false