Evaluating the effectiveness of rating instruments for a communication skills assessment of medical residents
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The investigators used evidence based on response processes to evaluate and improve the validity of scores on the Patient-Centered Communication and Interpersonal Skills (CIS) Scale for the assessment of residents’ communication competence. The investigators retrospectively analyzed the communication skills ratings of 68 residents at the University of Illinois at Chicago (UIC). Each resident encountered six standardized patients (SPs) portraying six cases. SPs rated the performance of each resident using the CIS Scale—an 18-item rating instrument asking for level of agreement on a 5-category scale. A many-faceted Rasch measurement model was used to determine how effectively each item and scale on the rating instrument performed. The analyses revealed that items were too easy for the residents. The SPs underutilized the lowest rating category, making the scale function as a 4-category rating scale. Some SPs were inconsistent when assigning ratings in the middle categories. The investigators modified the rating instrument based on the findings, creating the Revised UIC Communication and Interpersonal Skills (RUCIS) Scale—a 13-item rating instrument that employs a 4-category behaviorally anchored rating scale for each item. The investigators implemented the RUCIS Scale in a subsequent communication skills OSCE for 85 residents. The analyses revealed that the RUCIS Scale functioned more effectively than the CIS Scale in several respects (e.g., a more uniform distribution of ratings across categories, and better fit of the items to the measurement model). However, SPs still rarely assigned ratings in the lowest rating category of each scale.
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- Evaluating the effectiveness of rating instruments for a communication skills assessment of medical residents
Advances in Health Sciences Education
Volume 14, Issue 4 , pp 575-594
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- Rating scale
- Communication skills
- Many-faceted Rasch measurement
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- Author Affiliations
- 1. Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Siamindra Building 12th fl., 2 Prannok Rd. Bangkoknoi, Bangkok, 10700, Thailand
- 2. Department of Educational Psychology, College of Education, University of Illinois at Chicago, Chicago, IL, USA
- 3. Department of Medical Education, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA