Logan calls his favorite toy car "go-go.". Now whenever he sees anything with wheels such as a bicycle, a train, or a grocery cart, he also calls it "go-go.". This is an example of
a. underextension.
b. referential language style.
c. expressive language style.
d. overextension.
d
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A horizontal cell
a) mediates motion detection b) contains rods cells c) mediates colour vision d) receives input from photoreceptors
The most serious criticism of DSM-IV is that
a) there are not enough diagnostic categories b) there is no utility in psychological diagnosis c) it takes into account "comorbidity" in diagnosis d) it continues to rely on a categorical system of diagnosis
Pioneering, systematic studies of infant development were conducted at Yale University by
A) Nancy Bayley. B) Benjamin Spock. C) Psyche Cattell. D) Arnold Gesell.
Selection differences are a concern for nonequivalent control group designs because ______.
A. participants are assigned to the levels of the independent variable at random B. only one group was selected, whereas the other group was not C. any preexisting differences between groups could explain an observed effect D. participant characteristics in a nonequivalent control group do not match those in an experimental group