Adaptation and validation of the Berlin questionnaire of competence in evidence-based dentistry for dental students: a pilot study

Table 2 Individual item analysis

Question	Points	Average	Standard deviation	Difficulty	Discriminatory power
Test	0–30	8.421	3.962	0.281	–
A1	0–1	0.353	0.480	0.353	0.126
A2	0–1	0.143	0.351	0.143	0.042
A3	0–1	0.256	0.438	0.256	−0.120
A4	0–1	0.398	0.491	0.398	0.403
A5	0–1	0.263	0.442	0.263	0.216
A6	0–1	0.353	0.480	0.353	0.052
A7	0–1	0.263	0.442	0.263	0.337
A8	0–1	0.391	0.490	0.391	0.033
A9	0–1	0.195	0.398	0.195	−0.023
A10	0–1	0.338	0.475	0.338	0.218
A11	0–1	0.203	0.404	0.203	0.039
A12	0–1	0.346	0.447	0.346	0.504
A13	0–1	0.256	0.438	0.256	0.059
A14	0–1	0.278	0.450	0.278	0.160
A15	0–1	0.361	0.482	0.361	0.421
B1	0–1	0.316	0.467	0.316	0.115
B2	0–1	0.353	0.480	0.353	0.338
B3	0–1	0.256	0.438	0.256	0.573
B4	0–1	0.398	0.491	0.398	0.167
B5	0–1	0.278	0.450	0.278	0.205
B6	0–1	0.241	0.429	0.241	0.259
B7	0–1	0.098	0.298	0.098	0.194
B8	0–1	0.158	0.366	0.158	−0.008
B9	0–1	0.444	0.499	0.444	0.421
B10	0–1	0.406	0.493	0.406	0.395
B11	0–1	0.143	0.351	0.143	0.098
B12	0–1	0.256	0.438	0.256	0.278
B13	0–1	0.241	0.429	0.241	−0.039
B14	0–1	0.271	0.446	0.271	0.170
B15	0–1	0.165	0.373	0.165	0.049

ISSN: 1472-6920