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Evaluation of radiology resident cognitive performance.

Using radiographs and slides in three formats, we objectively tested the cognitive performance of 16 residents during an 8-month period. One format tested individual residents with radiographs and required only that a list of findings be provided within a week. For the second method, radiographs were projected to a small group of residents and a single diagnosis for each of ten cases was required. The third format required a larger group of competing residents to view projected slides of ten loosely defined but thematically connected cases and develop one diagnosis. Two of the test formats correlated significantly with a Spearmen rank, r = .50 or better (P less than .025) with a ranking based upon total score on the American College of Radiology Inservice Examination. All three test formats had a Spearmen rank r = .50 or better (P less than .05) when compared with pooled ranking performed by the staff radiologists.