Literaturnachweis - Detailanzeige
Autor/inn/en | Samar, Vincent J.; DeFilippo, Carol Lee |
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Titel | Round-Off Error, Blind Faith, and the Powers that Be: A Caution on Numerical Error in Coefficients for Polynomial Curves Fit to Psychophysical Data. |
Quelle | In: Journal of Outcome Measurement, 2 (1998) 2, S.159-67 |
Sprache | englisch |
Dokumenttyp | gedruckt; Zeitschriftenaufsatz |
ISSN | 1090-655X |
Schlagwörter | Computer Software; Goodness of Fit; Mathematical Models; Statistical Bias |
Abstract | Graphing and statistics software permitting users to fit polynomial curves to scatter plots of data may display the equation generating the curve with numerical coefficients that have been rounded off to a few decimal places. The round-off error can produce anomalous findings due to systematic and extreme distortions of the fitted curve. (Author/MAK) |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |