Effects of rater selection on peer assessment among medical students

Abstract

Students with low levels of peer-assessed interpersonal attributes are more negative in their judgements of classmates. Third-year medical students with low levels of interpersonal attributes are more likely to be rated by other students with low levels of interpersonal attributes, irrespective of method of rater assignment. This effect was not seen in the second year of medical school. Biases in selection of raters among third-year students, however, do not appear to affect the results of peer assessment. Thus, medical schools that choose to institute peer assessment can select the method of peer-rater assignment based on practicality and logistical considerations. Students' affiliations with one another in the third year appear to be related to peer-assessed interpersonal attributes.