104
Table 6.3(continued)Malpani20154 expert surgeons and 14 trainee surgeonsRobotic suturing and knot tyingAnonymous survey of preference for superior task segment performance between paired videos distributed to Johns Hopkins community Computed percentile scores for segment performance using preferences Predicted task-level scores using segment-levelpercentile scoresInexperienced survey respondents: < 72 h Experts: ~672 h83% agreement between inexperienced survey respondents and experts Segment score: Spearman’s ρ^
≥
0.86
Task score: Pearson’sρ^≥ 0.84$10 gift card/surveyFirst authorYearTask performersTaskEvaluation mechanismAverage time to feedbackRating agreement between crowds and expertsCompensationJ.C. Dai and M.D. Sorensen