Matthew wants to see if amount of dog-walking time is related to contentment. He measures how many minutes per day dog owners walk their dogs and has them complete a survey that measures contentment. What kind of research design is this?
a. Extraneous
b. Cross-sectional
c. Experimental
d. Correlational
Ans: D
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Five-year-old Nathan pours juice from a tall glass into a shorter one. He then gives the short glass to Vince. Threeyear-old Vince is upset because he now believes he has less juice than when it was in the tall glass. This aspect of preoperational thought is called
a. egocentrism. b. precausal thinking. c. transductive reasoning. d. irreversibility.
Olfactory cells are stimulated by:
A. the taste buds' response to a chemical stimulus B. molecules dissolving in the mucus covering the cells C. the sniffing action of the outer nasal passages D. the primary olfactory cortex
Chomsky’s explanation of language is basically:
a. empiricistic b. nativistic c. associationistic d. mechanistic
Jerry is having difficulty with the motor nerves in his leg. His problem is in the _____ nervous system
a) autonomic b) somatic c) central d) muscle