Table 2.

Questions’ characteristics depending on the questions’ formulation

Number of right answers depending on the questions’ formulation
		Question formulation
		Negative		Positive		Total
		n	%	n	%	n	%
Number of right answers
	1	112	95.7	196	63.4	308	72.3
	2	5	4,3	31	10,0	36	8,5
	3	0	0	49	15,9	49	11,5
	4	0	0	28	9,1	28	6,6
	5	0	0	5	1,6	5	1,2
Total		117	100	309	100	426	100
Mean ± SD		1.04 ± 0.2*		1.75 ± 1.1*
Total number of answers depending on the questions’ formulation
Number of answers
	1	0	0	6	1,9	6	1,4
	2	0	0	4	1,3	4	0,9
	3	0	0	6	1,9	6	1,4
	4	30	25,6	138	44,7	168	39,4
	5	87	74,4	152	49,2	239	56,1
	6	0	0	2	0,6	2	0,5
	7	0	0	1	0,3	1	0,2
Total		117	100	309	100	426	100
Mean ± SD		4.74 ± 0.44*		4.41 ± 0.79*
Number of elaborate questions depending on the questions’ formulation
		Question formulation
		Negative		Positive		Total
		n	%(1)	n	%(1)	n	%(1)
Elaborate question
	No	68	58.1	159	51.5	227	53.5
	Yes	49	41.9	150	48.5	199	46.5
Total		117	100	309	100	426	100

*p < 0.001 (Mann–Whitney U Test); SD: Standard deviation; Mean and SD refer to the number of right answers per question and the number of answers per question, respectively, depending on the formulation of the questions; (1) % within formulation groups