The total number cases in a distribution is called:

a. The base number N.
b. The range.
c. The row marginal.
d. The mode.


a. The base number N.

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Which developmental disability begins in childhood and is characterized by deficits in cognitive and adaptive functioning?

A. Cerebral palsy B. Intellectual disabilities C. Autism spectrum disorder D. Hearing impairment

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According to a 2008 Rand Institute study an estimated _____________ veterans suffered from PTSD or major depression

a) 300,000 b) 200,000 c) 500,000 d) 125,000

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Which of the following best describes an on-going controversy of Likert-type ratings?

a. Individuals argue whether participants can really understand them. b. Individuals disagree on whether or not it should be used as a ratio scale. c. Individuals disagree on whether or not it should be used as an interval scale. d. Individuals disagree on whether or not participants think of them as nominal scales.

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_____ is one of the “big five” or OCEAN personality factors

A. Self-reliance B. Selfishness C. Neuroticism D. Introversion

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