Question: One factor that needs to be considered in determining the number of subjects to include in a norm sample is that the sample needs to

One factor that needs to be considered in determining the number of subjects to include in a norm sample is that the sample needs to be large enough to a. calculate means and standard deviations. b. include at least 25 subjects at each grade and at each age. c. make it likely that infrequent elements in the population will be represented. d. increase the sizes of interpolations and extrapolations

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