Empirical research leads to the conclusion that ____
a. violent media are not causally linked to aggression
b. violent media exposure is inversely linked to aggression
c. violent media exposure increases aggressive behavior
d. violent media exposure has no effect on aggressive behavior
C
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Winning lottery numbers are announced on the local television station every Saturday night at the end of the news hour. People who are watching for the lottery numbers will have their "watching" reinforced on
a. a fixed-ratio schedule. b. a variable-ratio schedule. c. a variable-interval schedule. d. a fixed-interval schedule.
What is an example of classical conditioning in an infant?
A. An infant is picked up in response to crying. B. An infant learns to swallow solid food with practice. C. An infant voluntarily grasps her mother's finger. D. An infant smiles at her mother's - but not a stranger's - face.
If you had assisted Alfred Binet in the development of his intelligence test, you would have taken care to develop test questions that
a. allowed for comparison of children's responses. b. could not be scored correct or incorrect. c. involved the same content throughout the test. d. assessed judgment, reasoning, and rote memory.
Why can we never be sure that a sample represents a population?
a. Random selection never works the way it is supposed to work. b. Samples created by random selection are almost never perfectly representative. c. A random sample may poorly represent a population, or it may accurately represent a different population. d. If selection is conducted correctly, samples always accurately represent the populations they are supposed to represent.