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Some Cheap Tricks for Making Inferences about Distribution Shapes from Variances

1982; SAGE Publishing; Volume: 42; Issue: 3 Linguagem: Inglês

10.1177/001316448204200304

ISSN

1552-3888

Autores

David M. Messick,

Tópico(s)

Cognitive and psychological constructs research

Resumo

Formulae and graphs are presented that allow one to compute the variances of three prototypical distributions over a finite number of categories. The distributions are (1) the maximum variance distribution, (2) the uniform distribution, and (3) a unimodal triangular distribution. The use of the variances of these prototypical distributions to make inferences about distribution shapes is illustrated with several examples.

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