Suppose you wish to compare computer-aided instruction with traditional lectures. One year the course is presented traditionally and the next using computers. You discover that the students in the computerized course do better on the final exam but you also discover that admission standards at the school were tightened in the second year. You have a problem with ____ as a threat to internal

validity.

A) testing
B) selection
C) history
D) maturation


C

Psychology

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As a typical male with erectile dysfunction, we can expect Bill to show

a. decreased arousal during performance demand and an inaccurate sense of how aroused he is. b. decreased arousal during performance demand and an accurate sense of how aroused he is. c. increased arousal during performance demand and an inaccurate sense of how aroused he is. d. increased arousal during performance demand and an accurate sense of how aroused he is.

Psychology

Mrs. Jones raises her voice when saying certain words. She is using _______ to communicate

a. noise b. artifacts c. nonverbal cues d. paralanguage

Psychology

Which of the following is not one of Weiner's elements that is important relative to attributions applied to achievement motivation?

a. ability b. effort c. personalism d. luck

Psychology

According to the diathesis-stress model of mental disorders,

a. a person can inherit genes for a disorder, yet not develop the symptoms for the disorder. b. the best way to treat a mental disorder is through drug therapy. c. mental disorders are causedby organic brain dysfunctions. d. both a genetic abnormality and severe stressors must combine to produce the disorder. e. the stress must be family-related.

Psychology