According to the article Zipping up the Genes about twins reared apart, what is the heritability of
aggression in identical quadruplets who differ in how aggressive they are?
(a) 0
(b) ,25
(c) ,75
(d) 1,00
D
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One-year-old Mathieu is afraid of the dog because he saw his father react with fear to the same dog. Which term best explains why Mathieu is afraid?
a. Stranger wariness b. Social referencing c. Complex emotions d. Avoidant attachment
By both neural and hormonal pathways, the hypothalamus regulates activity of the ____.
A. pituitary gland B. thalamus C. retina D. ventricles
In a study by Hyde and colleagues (1990), it was found that boys perform better than girls in word problems in __________
a. elementary school c. high school and college b. middle school d. never
Which of the following is TRUE about work during adolescence?
a. Few American adolescents see their high school jobs as the basis for a future career. b. Most are likely to work answering phones and doing clerical work in an office setting. c. Less than half of adolescents in the United States and Canada have held at least one part-time job by the end of high school. d. The United States is the only country where part-time work is associated with problem behavior.