DRIFT happens, sometimes: Examining time based rater variance in a high-stakes OSCE
Karen Coetzee & Dr. Sandra Monteiro
- To what extent does DRIFT exist in 12 stations of the high-stakes IENCAP OSCE in which nurse examiners are subjected to a highly rigorous two-phase training process?
- Differential rater function over time (DRIFT) is described as increasing leniency in standardized assessments due to rater fatigue over time1.
- Internationally Educated Nurses Competency Assessment Program (IENCAP) is a high-stakes assessment conducted at Touchstone Institute in collaboration with the College of Nurses of Ontario (CNO).
on October 13, 2020
Findings demonstrated relatively high inter-rater reliability and intra-rater reliability, and that CLB-based speaking descriptors (CLB 6-9) provided sufficient information for raters to discriminate examinees’ oral proficiency.