What is the best definition of heritability?
A. the amount of an individual's phenotype that is due to genetic influences
B. the proportion of traits in an individual that is not influenced by environmental variables
C. the amount that a trait varies in a population that is due to genetics
D. the likelihood that a parent will pass on a particular trait to his or her offspring
Answer: C
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The correct order or sequence of Piaget's stages is
a. preoperational, concrete operational, formal operational, sensorimotor. b. sensorimotor, preoperational, concrete operational, formal operational. c. sensorimotor, concrete operational, preoperational, formal operational. d. preoperational, sensorimotor, concrete operational, formal operational.
Jimmy is only three days old, but he is making a high-pitched cry, is moving his arms and legs back and forth, and has an elevated heart rate. It is likely that Jimmy is currently
a. needing a diaper change b. hungry c. in pain. d. experiencing REM sleep.
A Type I error has occurred if we
a. reject a null hypothesis that is really false. b. retain a null hypothesis that is really false. c. retain a null hypothesis that is really true. d. reject a null hypothesis that is really true.
A subliminal stimulus is one that:
A. has a 50-50 chance of being detected B. has a variable JND C. is below an absolute threshold and thus is not consciously perceived D. has been perceived by association areas of the brain but not the higher cortices