Which of the following is true with regard to the heritability of intelligence?
a. Monozygotic twins have nearly identical IQ scores, indicating the vast majority of variation in intelligence is genetic.
b. Heritability estimates for intelligence are generally greater for adults than for children.
c. Studies indicate that the heritability of intelligence is very low.
d. Regardless of age, heritability estimates for intelligence range from .50 to .70.
Answer: b
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Larry's house has caught fire, and he is trapped inside. The neighbors called 911. Two firefighters and one of the neighbors (an accountant) entered the house in an attempt to save Larry. Another neighbor tore away the screening around Larry's porch so that his dog could run to safety. As opposed to the neighbor, the firefighters who attempted to save Larry were performing a(n) ___________________.
A. duty B. discretionary act C. imperfect duty D. supererogatory act
Which of the following factors does NOT seem to predict an escalation in substance use among adolescents?
a. histories of impulsive and disruptive behavior b. parent modeling of excessive substance use c. friends’ use of alcohol and other drugs d. personal values related to abstinence and sobriety
Androgens are produced by the ______.
A. penis B. ovaries C. vas deferens D. testosterone
In early adolescence, cliques tend to be ______.
A. established for the purposes of dating B. characterized by relational aggression C. sex segregated D. mixed sex