When learning a new noun, toddlers and preschoolers acquiring diverse languages tend to assume that it refers to an object category at ________.
A. a specific hierarchical level, such as "beagle" or "greyhound"
B. an intermediate hierarchical level, such as "dog"
C. a general hierarchical level, such as "animal"
D. both a specific and a general hierarchical level at the same time
Answer: B
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In factorial designs, the comparison of the mean scores for the ______ is the test of the main effect of that independent variable.
A. interaction effect B. levels of the independent variable C. marginal means D. factorial designs
"Blue heavens," "yellow jackets," "goof balls," "reds," "pink ladies," "rainbows," and "tooies" are street names for
a. Ecstasy. b. barbiturates. c. hallucinogens. d. amphetamines.
The circadian rhythm is reset by input from special ganglion cells in the retina. These ganglion cells are unusual in that they ____.
A. receive input from only cones, not rods B. are located only in a doughnut-shaped band surrounding the fovea C. respond directly to light, but respond very slowly D. become active only at night or in very dim light
Ivan Pavlov provided evidence that reflexes can be learned through
a. contingency. c. instinct. b. dissociation. d. association.