A researcher records a large sample of data with a mean equal to 36 and a standard deviation equal to 1.5. If the data are normally distributed, then using the empirical rule which of the following gives the closest estimate for the percent of data that falls between scores 33 and 39.

A. at least 68%
B. at least 95%
C. at least 99.7%
D. at least 100%


Answer: B

Psychology

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Regarding the Wechsler tests, which of the following statements is FALSE?

a. The WAIS is an intelligence test specially designed for adults. b. The Wechsler scales do not have a version suitable for children. c. The Wechsler scales yield a single overall intelligence score. d. The Wechsler scales yield separate scores for performance intelligence and verbal intelligence.

Psychology

Prior to 200 years ago, the only explanation that was NOT given as a common cause of strange behaviour or bizarre thoughts or emotions was:

A) God's punishment for wrongdoing B) possession by demons. C) witchcraft. D) disease.

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A. habituation. B. sensitization. C. classical conditioning. D. a fixed action pattern.

Psychology