The use of peer
assessment through a multisource feedback process has gained recognition as a
reliable and valid method to assess the characteristics of professionals and
trainees. A total of 168 first-year medical students
completed a 15-item questionnaire to self-assess their
professional work habits and interpersonal
abilities. Each student was expected to identify 8 first-year classmates to complete a corresponding 15-item peer assessment. Although the self and peer assessment
questionnaires had strong reliability (Cronbach’s
α = 0.85 and 0.91, respectively), an exploratory factor analysis resulted in a
3- and 2- factor solution,
respectively. The third factor was associated with items related to students’ personal attributes. Significantly
lower mean score differences for the self-report assessment were found for all
15 items (Cohen’s d = 0.27 to 1.39, p < 0.001). A decision study analysis
found that 7 peer assessors were needed to achieve a generalizability
coefficient of 0.70. The findings suggest some inconsistencies in regards to the construct validity and stability of measures between self
and peer assessment measures. The need for self-awareness of students’
strengths and limitations, however, is recommended as part of their development
in a profession that emphasizes self-regulation.
Cite this paper
Donnon, T. , McIlwrick, J. & Woloschuk, W. (2013). Investigating the Reliability and Validity of Self and Peer Assessment to Measure Medical Students’ Professional Competencies. Creative Education, 4,
23-28. doi: 10.4236/ce.2013.46A005
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