Journal article
Detecting differential rater functioning over time (DRIFT) using a Rasch multi-faceted rating scale model
Journal of applied measurement, Vol.2(3), pp.256-280
2001
PMID: 12011510
Abstract
This paper describes a class of rater effects that depict rater-by-time interactions. We refer to this class of rater effects as DRIFT differential rater functioning over time. This article describes several types of DRIFT (primacy/recency, differential centrality/extremism, and practice/fatigue) and Rasch measurement procedures designed to identify these types of DRIFT in rating data. These procedures are applied to simulated data and are shown to be useful in classifying raters as being aberrant or non-aberrant for primacy, recency, and differential centrality and extremism, particularly for moderate or larger effect sizes. Rates of correct classification for practice and fatigue were lower and statistical power exceeded.50 only with very large effect sizes. Type I error rates (i.e., incorrect nomination) were near expected levels in all cases.
Details
- Title: Subtitle
- Detecting differential rater functioning over time (DRIFT) using a Rasch multi-faceted rating scale model
- Creators
- E. W. Wolfe - Michigan State UniversityB. C. Moulder - Michigan State UniversityC. M. Myford - Michigan State University
- Resource Type
- Journal article
- Publication Details
- Journal of applied measurement, Vol.2(3), pp.256-280
- PMID
- 12011510
- NLM abbreviation
- J Appl Meas
- ISSN
- 1529-7713
- Number of pages
- 25
- Language
- English
- Date published
- 2001
- Academic Unit
- Psychological and Quantitative Foundations
- Record Identifier
- 9985123694402771
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