Skip to main content
Erschienen in: International Journal of Behavioral Medicine 4/2019

28.05.2019 | Commentary

Statistical Guideline #1. Avoid Creating Categorical Variables from Continuous Variables

verfasst von: Suzanne C. Segerstrom

Erschienen in: International Journal of Behavioral Medicine | Ausgabe 4/2019

Einloggen, um Zugang zu erhalten

Excerpt

Frequently, editors and reviewers see continuous data artificially categorized for statistical analysis—for example, above or below a clinical cutoff or the sample median. The first statistical guideline for IJBM is to keep continuous variables as continuous variables whenever possible. …
Literatur
1.
Zurück zum Zitat MacCallum RC, Zhang S, Preacher KJ, Rucker DD. On the practice of dichotomization of quantitative variables. Psychol Methods. 2002;7:19–40.CrossRef MacCallum RC, Zhang S, Preacher KJ, Rucker DD. On the practice of dichotomization of quantitative variables. Psychol Methods. 2002;7:19–40.CrossRef
2.
Zurück zum Zitat Widiger TA, Samuel DB. Diagnostic categories or dimensions? A question for the diagnostic and statistical manual of mental disorders – fifth edition. J Abnorm Psychol. 2005;114:494–504.CrossRef Widiger TA, Samuel DB. Diagnostic categories or dimensions? A question for the diagnostic and statistical manual of mental disorders – fifth edition. J Abnorm Psychol. 2005;114:494–504.CrossRef
3.
Zurück zum Zitat Aiken LS, West SG. Multiple regression: testing and interpreting interactions. Thousand Oaks: Sage; 1991. Aiken LS, West SG. Multiple regression: testing and interpreting interactions. Thousand Oaks: Sage; 1991.
4.
Zurück zum Zitat Simms LJ, Zelazny K, Williams TF, Bernstein L. Does the number of response options matter? Psychometric perspectives using personality questionnaire data. Psychol Assess. 2019;31:557–66.CrossRef Simms LJ, Zelazny K, Williams TF, Bernstein L. Does the number of response options matter? Psychometric perspectives using personality questionnaire data. Psychol Assess. 2019;31:557–66.CrossRef
5.
Zurück zum Zitat Bürkner PC, Vuorre M. Ordinal regression models in psychology: a tutorial. Adv Methods Pract Psychol Sci. 2019;2:77–101.CrossRef Bürkner PC, Vuorre M. Ordinal regression models in psychology: a tutorial. Adv Methods Pract Psychol Sci. 2019;2:77–101.CrossRef
Metadaten
Titel
Statistical Guideline #1. Avoid Creating Categorical Variables from Continuous Variables
verfasst von
Suzanne C. Segerstrom
Publikationsdatum
28.05.2019
Verlag
Springer US
Erschienen in
International Journal of Behavioral Medicine / Ausgabe 4/2019
Print ISSN: 1070-5503
Elektronische ISSN: 1532-7558
DOI
https://doi.org/10.1007/s12529-019-09790-7

Weitere Artikel der Ausgabe 4/2019

International Journal of Behavioral Medicine 4/2019 Zur Ausgabe