Table 3.
SCOPE: factor structure and refinement
| Original Item No. | New Item No.1 | Statement | Original Factor2 | Rasch Refinement | |
|---|---|---|---|---|---|
| Optimism | PSelf-Worth3 | ||||
| 7 | I do not feel suicidal when I receive bad news | X | Removed due to dependency with items 6, 21 & 25 | ||
| 17 | I do not feel helpless | X | Removed due to over discrimination misfit | ||
| 25 | If I were depressed I would not think about harming myself | X | Removed due to dependency with items 6, 7 & 21 | ||
| 18 | O1 | If I worry about things I sleep OK | a | Remains in Factor 1 | |
| 13 | I do not feel fed up | X | Removed due to over discrimination misfit | ||
| 16 | I enjoy everything | X | Removed due to under discrimination misfit | ||
| 6 | I do not think about harming myself | X | Removed due to dependency with items 7, 21 & 25 | ||
| 21 | O2 | I do not think about how I can end my life | a | Rescoring suggests dichotomy. Remains in Factor 1 | |
| 5 | O3 | If I were on remand I would not feel stressed out | a | Remains in Factor 1 | |
| 24 | O4 | I feel like there is hope in my life | a | Remains in Factor 1 | |
| 23 | O5 | I can think straight when I am depressed | a | Remains in Factor 1 | |
| 8 | O6 | I feel fine about coming into this establishment | a | Remains in Factor 1 | |
| 14 | O7 | I think that everyone likes me | a | Remains in Factor 1 | |
| 11 | O8 | If I am nervous I do not lose my appetite | a | Remains in Factor 1 | |
| 1 | O9 | I do not feel lonely in my room on my own | a | Remains in Factor 1 | |
| 19 | O10 | If I were depressed I would talk to someone | a | 0 | Originally in Factor 2, loads and fits with Factor 1 |
| 4 | I will speak to an officer when I have a problem | X | Removed due to dependency with item 3 | ||
| 10 | P1 | When arrested I would say I was sorry | a | Remains in Factor 2 | |
| 3 | P2 | If I were feeling suicidal I would speak to someone | a | Remains in Factor 2 | |
| 15 | P3 | The day before I was due to appear in court I would think about the future | a | Remains in Factor 2 | |
| 27 | P4 | I always turn up in court | a | Remains in Factor 2 | |
| 9 | If I had been arrested I would try and get in contact with my family | X | Removed due to dependency with item 20 | ||
| 2 | P5 | If I had a job I would not commit crime | a | Remains in Factor 2 | |
| 12 | P6 | If I stole money for drugs I would feel like I had let myself down | a | Remains in Factor 2 | |
| 22 | P7 | If I had a fight with a prisoner I would ask to see the governor | a | Remains in Factor 2 | |
| 20 | P8 | My family support me | a | Rescoring suggests dichotomy. Remains in Factor 2 | |
| 26 | P9 | If I had a supportive family I would not kill myself | a | Rescoring suggests dichotomy. Remains in Factor 2 | |
1 New item numbering presented by factor structure o = optimism on factor one and p = protective self-worth on factor two
2 X = item removed from dataset, a = Item remains in original factor, 0 = Item switched from one factor to another
3 PSelf Worth = Protective Self-Worth