Table 4.
Reliability test of OIDP among the working sample (n:561).
| OIDP Dimensions | Corrected item-total correlation | Alpha if item deleted |
| Eating | 0.43 | 0.65 |
| Speaking | 0.40 | 0.67 |
| Cleaning | 0.30 | 0.68 |
| Working | 0.38 | 0.67 |
| Social | 0.43 | 0.66 |
| Sleeping & Relaxing | 0.38 | 0.67 |
| Smiling | 0.42 | 0.66 |
| Emotional | 0.45 | 0.65 |
Analysis of corrected item-total correlation and Alpha value if item deleted.
Standardised item Alpha = 0.71
Alpha = 0.69