Reproductive Health

Table 2 Item analysis

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

Item	Difficulty index	Discriminant index
1^a	0.87	0.1
2^a	0.99	0
3^a	0.99	0
4^b	0.84	0.1
5^a	0.98	0.05
6^a	0.99	0.025
7^a	0.9	−0.05
8^b	0.88	0.15
9^a	0.98	0
10^a	0.96	0.05
11^b	0.18	0.33
13	0.19	0.25
15^b	0.3	0.23
16^b	0.26	0.43
18^a	0.36	0.43
19	0.55	0.6
25^a	0.83	0.1
26	0.58	0.43
27	0.34	0.3
28	0.61	0.58
29^b	0.17	0.025
30	0.25	0.43
31	0.32	0.48
32	0.41	0.68
33	0.11	0.23
34	0.34	0.53
35^a	0.11	0.1
36^a	0.98	0
37^a	0.80	0.1

^aDeleted items
^bSelected items with modifications

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ISSN: 1742-4755

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