Psychometric analysis of the Self-Harm Inventory using Rasch modelling

BMC Psychiatry

Table 1 Fit of Self-Harm Inventory (SHI) Items

SHI Item	Loc.	SE	Fit Res.	DF	Chi Sq.	DF	Prob.
1. Overdosed	0.709	0.173	-2.159	322.62	11.163	6	0.083
2. Cut	-0.686	0.128	-1.935	322.62	12.260	6	0.056
3. Burned	0.891	0.183	-0.444	322.62	5.171	6	0.522
4. Hit Yourself	-1.233	0.122	0.696	322.62	4.119	6	0.661
5. Banged Your Head	-0.892	0.126	-0.408	320.72	6.565	6	0.363
6. Abused Alcohol	-1.793	0.121	2.108	322.62	3.897	6	0.691
7. Driven Recklessly	-0.695	0.129	1.074	321.67	6.945	6	0.326
8. Scratched Yourself	-0.776	0.127	-1.181	321.67	6.410	6	0.379
9. Prevent Wounds Healing	0.265	0.153	-1.149	322.62	4.952	6	0.550
10. Medical Situations Worse	-0.093	0.142	-0.674	322.62	4.077	6	0.666
11. Promiscuous	0.246	0.153	-0.291	322.62	3.706	6	0.716
12. Set Up Relationship Rejection	0.000	0.144	-0.362	322.62	6.810	6	0.339
13. Abused Medication	0.389	0.158	-2.285	322.62	7.547	6	0.273
14. Distanced From God	0.086	0.147	1.116	322.62	6.491	6	0.371
15. Emotional Abuse Relationship	0.088	0.147	-0.952	322.62	4.073	6	0.667
16. Sexual Abuse Relationship	2.990	0.415	-0.773	322.62	2.879	6	0.824
17. Lost Job On Purpose	0.337	0.156	1.910	322.62	18.010	6	0.006
18. Attempted Suicide	0.692	0.172	-1.840	321.67	9.086	6	0.169
19. Exercised Injury	0.217	0.152	-0.191	322.62	4.937	6	0.552
20. Self-Defeating Thoughts	-1.916	0.122	-0.396	321.67	7.067	6	0.315
21. Starved Yourself	-0.414	0.134	-1.279	321.67	6.388	6	0.381
22. Abused Laxatives	1.589	0.232	-0.218	322.62	4.663	6	0.588

ISSN: 1471-244X