Actual performance of each task on the list was confirmed by students who were secretly auditing its use while observing the surgeries. (sciencedaily.com)
I can easily make a shortlist based on actual performance. (inc.com)
A one percentile increase in actual performance in the district in which the respondent lived was associated with an increase of roughly 0.4 percentile points in the respondent's estimate. (educationnext.org)