Twins that are the product of the fertilization of two eggs by two sperm often at the same time are called fraternal or ____________ twins
Fill in the blank(s) with the appropriate word(s).
Answer: dizygotic
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A second way of studying heritability, other than the formula h2 = 2(rmz – rdz) is through the use of
a. dizygotic twins reared apart. b. monozygotic twins reared apart. c. factor analysis. d. a quadratic analysis.
Dr. Kline takes an eclectic approach in treating psychological disorders. She often prescribes medications that influence neurotransmitter levels, but she also works with her clients to change their behavior and understand the role of social factors in their problems. Dr. Kline's approach to therapy illustrates the idea that
a. our cultural backgrounds exert a considerable influence over our behavior. b. motives and expectations can color our experiences. c. unconscious motivation has little impact on overt behavior. d. differing theoretical perspectives can provide a more complete understanding of behavior.