ERIC Number: EJ640215
Record Type: Journal
Publication Date: 2001
Reference Count: N/A
Detecting Differential Rater Functioning over Time (DRIFT) Using a Rasch Multi-faceted Rating Scale Model.
Wolfe, Edward W.; Moulder, Bradley C.; Myford, Carol M.
Journal of Applied Measurement, v2 n3 p256-80 2001
Describes a class of rater effects, differential rater functioning over time (DRIFT), that depicts rater-by-time interactions. Also describes Rasch measurement procedures designed to identify these types of DRIFT in rating data. Applied these procedures to simulated data to show their usefulness in classifying raters as aberrant or non-aberrant for primacy, regency, and differential centrality and extremism. (SLD)
Publication Type: Journal Articles; Reports - Descriptive; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A