For a within-subjects experiment, one of the primary threats to internal validity is ____

a. individual differences that may exist within treatment conditions
b. individual differences that may exist between treatment conditions
c. the risk that participation in one treatment condition may influence scores in other treatment conditions
d. the risk that one (or more) of the treatment conditions will have no influence on the participants' scores


c

Psychology

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Which of the following statements is true of psychiatrist Aaron Beck's cognitive therapy?

A) Aaron Beck believed in distancing clients from situations that arouse fear. B) Aaron Beck believed that clients may selectively perceive the world as a harmful place and ignore evidence to the contrary. C) Aaron Beck stated that people with psychological disorders are best treated in asylums. D) Aaron Beck stated that people with psychological disorders are not capable of engaging in absolutist thinking.

Psychology

__________ is the process through which we detect physical energy from the environment and code that energy as neural signals

a. Perception b. Sensation c. Detection d. Transduction

Psychology

______ twins arise from the situation in which two different eggs are fertilized by two different spermatozoa.

a. Heterozygotic b. Homozygotic c. Monozygotic d. Dizygotic

Psychology

Mei Ling has a high percentile score on the Marlowe-Crowne questionnaire. What does this indicate?

A. Mei Ling has a higher need for approval than most people do. B. Mei Ling has a lower need for approval than most people do. C. Mei Ling has a higher degree of extraversion than most people do. D. Mei Ling has a lower degree of extraversion than most people do.

Psychology