Table 3.

Items Assessed During the OSATS.

	Nonexperts		Experts
Item assessed during the OSATS	Mean	95% CI	Mean	95% CI	P value a
Used the correct hand	0.20	0.08 to 0.31	0.22	0.04 to 0.40	>.99
Otoscope was held correctly	0.51	0.37 to 0.65	0.13	−0.02 to 0.28	.002
Otoscope was stabilized with a finger	0.57	0.43 to 0.71	0	0	<.0001
Pinna was pulled upwards and backwards	0	0	0.09	−0.03 to 0.22	.093
Otoscope was inserted to the correct insertion depth	0.69	0.55 to 0.82	0.087	−0.03 to 0.21	<.0001
Otoscopy was performed atraumatically	0.35	0.22 to 0.49	0.09	−0.03 to 0.21	.0227
Time to complete the task (in seconds)	56.01	47.84 to 63.13	30.59	24.11 to 37.07	<.0001
Percentage of the assessed eardrum surface	66.43	58.98 to 73.88	83.84	77.83 to 89.86	.0027

Abbreviation: OSATS, Objective Structured Assessment of Technical Skills.

^aMann-Whitney U test.