The high concordance rate for affective disorders in identical twins drops only slightly when they are reared apart, suggesting that ______.
A. there is little to no environmental influence
B. the most important environmental influences occur during the prenatal period
C. when one twin is diagnosed, the other twin will be diagnosed at some point in their life
D. environmental influence is not important
Answer: B
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The _____ was conceived after researchers noticed the similarities in the personality dimensions that had emerged across many studies, both within and between cultures
a) five-factor model b) biopsychosocial model c) hierarchical model of personality d) social dominance theory
In a(n) _____, the results from multiple studies are synthesized to produce some overall conclusion
Fill in the blank(s) with correct word
Behavioral genetics is best described as the scientific study of how _____ impact development
a. genetics alone b. environmental factors alone c. genetic and environmental factors together d. non-genetic and non-environmental factors together
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.