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Table 6 Descriptive analysis of the items

From: Sexuality and contraceptive knowledge in university students: instrument development and psychometric analysis using item response theory

Item Percentage of successes Percentage of mistakes Percentage of ‘don’t know, no answer’ responses
4 89.9 6.2 3.9
8 93 4.4 2.6
13 74.7 17.6 7.8
15 51.7 20.7 27.6
16 27.6 50.1 22.2
19 53 16.8 30.2
26 62 2.3 35.7
27 37 7.2 55.8
28 62.3 4.9 32.8
29 22 4.1 73.9
30 25.8 11.4 62.8
31 39.3 1.3 59.4
32 43.4 36.4 20.2
33 15.8 37.5 46.8
34 34.9 9 56.1