Can Rater Training Improve the Quality and Accuracy of Workplace-Based Assessment Narrative Comments and Entrustment Ratings? A Randomized Controlled Trial.

PURPOSE

Prior research evaluating workplace-based assessment (WBA) rater training effectiveness has not measured improvement in narrative comment quality and accuracy, nor accuracy of prospective entrustment-supervision ratings. The purpose of this study was to determine whether rater training, using performance dimension and frame of reference training, could improve WBA narrative comment quality and accuracy. A secondary aim was to assess impact on entrustment rating accuracy.

METHOD

This single-blind, multi-institution, randomized controlled trial of a multifaceted, longitudinal rater training intervention consisted of in-person training followed by asynchronous online spaced learning. In 2018, investigators randomized 94 internal medicine and family medicine physicians involved with resident education. Participants assessed 10 scripted standardized resident-patient videos at baseline and follow-up. Differences in holistic assessment of narrative comment accuracy and specificity, accuracy of individual scenario observations, and entrustment rating accuracy were evaluated with t tests. Linear regression assessed impact of participant demographics and baseline performance.

RESULTS

Seventy-seven participants completed the study. At follow-up, the intervention group (n = 41), compared with the control group (n = 36), had higher scores for narrative holistic specificity (2.76 vs 2.31, P < .001, Cohen V = .25), accuracy (2.37 vs 2.06, P < .001, Cohen V = .20) and mean quantity of accurate (6.14 vs 4.33, P < .001), inaccurate (3.53 vs 2.41, P < .001), and overall observations (2.61 vs 1.92, P = .002, Cohen V = .47). In aggregate, the intervention group had more accurate entrustment ratings (58.1% vs 49.7%, P = .006, Phi = .30). Baseline performance was significantly associated with performance on final assessments.

CONCLUSIONS

Quality and specificity of narrative comments improved with rater training; the effect was mitigated by inappropriate stringency. Training improved accuracy of prospective entrustment-supervision ratings, but the effect was more limited. Participants with lower baseline rating skill may benefit most from training.