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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한뇌신경재활학회 뇌신경재활 뇌신경재활 제9권 제1호
발행연도
2016.1
수록면
31 - 36 (6page)

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Objective: To measure the intra- and inter-rater reliability of a simple sensorimotor performance test for rats, and to evaluate the learning efficiency of a novice rater for the test. Method: Middle cerebral arteries were occluded by intraluminal sutures in 25 male Sprague-Dawley rats (10∼12 weeks old). The sensorimotor performance test was performed by a novice and an experienced rater, with each rater performing the test twice each week for 3 consecutive weeks. A ten-minute standardized video about the rating method was shown to the novice rater after the second test each week. Results: The intra- and inter-rater agreement was determined using Cohen's weighted kappa coefficient. The intra-rater reliability was initially poor for the novice (κ [95% confidence interval], 0.31[−0.02, 0.64]), but it improved significantly after 3-week self education using the standardized video (0.81 [0.69, 0.93], showing almost perfect agreement. The reliability of the experienced researcher was good at all times (κ=0.64, 0.76, 0.71, for week 1, 2, 3, respectively), indicating substantial agreement. The inter-rater reliability showed clear improvement after self-education (κ= 0.44, 0.69, 0.69, for week 1, 2, 3, respectively). Although the total sum score was highly reliable, some of the individual items showed lower intra-and inter-rater agreement. However, each rater showed greater within-rater variability for different subtests. Conclusion: The simple sensorimotor performance test showed high degree of intra- and inter-rater agreement when performed by experienced or properly educated raters. The inaccuracy of the novice was rectified by 3-week self-education using a video.

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