The purpose of having random assignment in an experiment is to:

a. prevent subjects from knowing of which experimental group they are a member.
b. provide ethical reasons for being in an experiment .
c. make sure that no pre-existing differences among groups caused the change in the experimental group's behavior.
d. cause a selection factor to determine how the subjects will behave in the experiment.


C

Psychology

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a. the extent to which the child's temperament is compatible with the social world to which the child must adapt. b. a child's ability to distinguish himself from his environment. c. the amount of impact genetic factors has on the development of personality. d. the extent to which a child develops an attachment to a caregiver.

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_____________ believed the self is a tangible unified mental entity

a. William James c. Skinner b. Descartes d. Kenny

Psychology

George, after years of smoking cigarettes, finds it difficult to quit. Opponent process theory explains his difficulty by stating ______.

A. his action specific energy is too high B. he encounters too many stimuli for smoking C. his B state is so strong he needs cigarettes D. his A state has grown so strong that the B state has been eliminated

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The Chinese believe that pregnancy is a "cold" condition during which the expectant mother should ______.

A. eat "cold" foods such as ice cream and cheese B. eat both "hot" and "cold" foods C. consume "hot" foods such as oils and expensive cuts of meat D. foods high in fat

Psychology