A key research interest in developmental psychology is to
a. trace the evolution of the human race.
b. identify the biochemical processes involved in thought.
c. determine how organisms change over time.
d. predict adult behavior.
e. study the effects of genetic mutations on behavior.
c. determine how organisms change over time.
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According to Freud, which aspect of our personality is present at birth and is unconscious?
a. Id b. Ego c. Superego d. Superid
One formula for the correlation between a continuous variable and an artificially dichotomized variable is
a. Spearman's rank order formula. b. the point biserial correlation. c. the phi coefficient. d. the biserial correlation.
A ____ refers to a reinforcer occurring only after an unchanging number of responses take place.
A. fixed interval B. fixed ratio C. variable interval D. variable ratio
The three types of intelligence proposed by Robert Sternberg are experiential, contextual and __________
a) intrapersonal. b) theoretical. c) spatial. d) componential.