Table 1.

Administration of three competency tests for diagnostic imaging guidelines implementation study

Arrows: Versions B and C of the questionnaires were crossed over within each of the subgroups undergoing both the posttest and the final test (IG1 and IG2), so that for the posttest, half of participants within each subgroup were first assigned to version B of the questionnaire, while the remaining participants completed version C, and vice versa at the final test. ^aOne group of 40 participants dropped out because they were not available for the pretest. IG, intervention group; CG, control group; IG1–3, intervention subgroups 1–3. A, B, and C are the three equivalent versions of the competency test.