Whenever the mean of the distribution of differences equals zero, then one
can be fairly safe in concluding that
a. the samples probably represent a single population
b. the samples probably represent different populations
c. there was absolutely no sampling error
d. none of these, since the mean can never equal zero
a
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You hear that a friend works in a "small machinery store," and you do not know whether "small" describes the size of the store or the size of the machinery in the store. This situation is called
a. indirect access. b. a nested structure. c. pragmatics. d. ambiguity.
Studies of visual perception indicate that infants under six months
a. pay more attention to simple patterns rather than complex ones. b. pay more attention to a person who is gazing directly at them, rather than one who is looking away. c. prefer to look at colored ovals rather than human faces. d. show all of these preferences.
"Emotional intelligence" is similar to Howard Gardner's __________ intelligence
a. intrapersonal c. intrinsic b. interpersonal d. a & b
Which of the following begins a primary circular reaction?
a. An infant's thumb and mouth first come in contact unintentionally and trigger the sucking reflex. b. An infant is given a pacifier and begins to suck on it. c. An infant possesses an instinct that sucking a thumb is similar to sucking on a pacifier. d. An infant is satisfied with sucking on a pacifier when he or she is not hungry.