Table 1.

Characteristics of True/False Questions

	Immunology mean (SD)	Microbiology mean (SD)
Difficulty index	0.43 (0.20)	0.21 (0.18)
Discrimination index mean (SD)	0.29 (0.10)	0.18 (0.12)
Average score*	42.67 (19.84)	21.27 (16.56)
Number of correct answers mean (SD)	52.60 (19.09)	42.54 (16.62)
Number of wrong answers mean (SD)	9.92 (7.60)	21.27 (12.87)
Number of blank answers mean (SD)	37.48 (21.22)	36.18 (24.68)
	Alpha (IC95%)	Alpha (IC95%)
Cronbach’s Alpha	0.90 (0.88; 0.92)	0.80 (0.76; 0.84)
Standard error of measurement	6.27%	7.40%

*Average Score using formula scoring, out of 100