What is the maximum value for heritability?
A) 0.1
B) 1.0
C) 10
D) 100
Answer: B
Rationale: Heritability is a statistic, expressed as a number between zero and one, that represents the degree to which genetic differences between individuals contribute to individual differences in a behavior or trait found in a population. A heritability of zero means that genes do not contribute to individual differences in a trait whereas heritability of 1.0 indicates that genes account for all individual differences in a trait.
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Vivid dreams often involve sudden and surprising changes in scene. This best serves to support the theory that dreams:
a. strengthen our memories of the preceding day's events. b. are expressions of erotic feelings and desires. c. help to prepare us for the stress and challenges of the following day. d. are triggered by bursts of neural activity.
When we experience an unpleasant state of tension between two or more conflicting thoughts, we are experiencing
A) a self-fulfilling prophecy. B) obedience. C) the fundamental attribution error. D) cognitive dissonance.