Literaturnachweis - Detailanzeige
| Autor/in | Bonett, Douglas G. |
|---|---|
| Titel | Robust Confidence Interval for a Ratio of Standard Deviations |
| Quelle | In: Applied Psychological Measurement, 30 (2006) 5, S.432-439 (8 Seiten)
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0146-6216 |
| DOI | 10.1177/0146621605279551 |
| Schlagwörter | Intervals; Mathematical Concepts; Comparative Analysis; Psychometrics; Robustness (Statistics); Statistical Distributions; Sample Size; Scoring Formulas; Information Retrieval; Hypothesis Testing; Simulation; Probability |
| Abstract | Comparing variability of test scores across alternate forms, test conditions, or subpopulations is a fundamental problem in psychometrics. A confidence interval for a ratio of standard deviations is proposed that performs as well as the classic method with normal distributions and performs dramatically better with nonnormal distributions. A simple and accurate sample size planning formula is proposed for estimating a ratio of standard deviations with desired confidence and precision. (Contains 5 tables.) (Author). |
| Anmerkungen | SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com. |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
Literaturbeschaffung und Bestandsnachweise in Bibliotheken prüfen
Permalink als QR-Code
Inhalt auf sozialen Plattformen teilen (nur vorhanden, wenn Javascript eingeschaltet ist)
Teile diese Seite:
