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Literature DB >> 26424490

The problem with categorical thinking by psychologists.

Abstract

Continua abound in the natural world, but the treatment of these continua in the psychological study of behavior is often categorical. Four practices and their consequences are considered: limited sampling of a continuum, turning continuous predictors into categories through dichotomization and similar practices, treating continuous predictors as categorical in an analysis, and overuse of the analysis of variance. Concrete examples illustrate the consequences of these practices. Recommendations to improve the treatment of continua, both in the design and analysis of data, are provided.

Keywords: Categorical; Continuous; Learning; Modeling; Multilevel analysis; Sampling; Statistics

Mesh：

Year: 2015 PMID： 26424490 DOI： 10.1016/j.beproc.2015.09.009

Source DB: PubMed Journal: Behav Processes ISSN： 0376-6357 Impact factor: 1.777

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