The effect of rating augmentation on inter-rater reliability: An empirical study of a holistic rubric |
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| Authors: | Jim Penny Robert L Johnson Belita Gordon |
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| Institution: | a Center for Creative Leadership, New Initiatives Department, PO Box 26300, One Leadership Place, Greensboro, NC 27438-6300, USA;b The University of South Carolina at Columbia, USA;c University of Georgia, USA |
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| Abstract: | A two-stage process by which a holistic rubric is applied to the assessment of open-ended items, such as writing samples, is defined. The first stage involves scoring a performance by the assignment of an integer rating that is congruent with the proficiency level that is exhibited in the performance. The second stage is the subsequent assignment by the rater of an augmentation that indicates whether or not the writing competency reflected in the paper is a bit higher or lower than the competency level reflected in the benchmark paper for the given proficiency level. If the rater feels that the paper represents benchmark proficiency for the given level, no augmentation is assigned to the rating. The results of this study indicate that the use of rating augmentation can improve the inter-rater reliability of holistic assessments, as indicated by generalizability phi coefficients, correlation coefficients, and percent agreement indices. Implications and suggestions for follow-up research are discussed. |
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| Keywords: | Inter-rater reliability Holistic rubric Rating augmentation |
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