From: Cross-diagnostic validity of the Nottingham health profile index of distress (NHPD)
 | Original NHPD | NHPD adjusted for DIF d |
---|---|---|
Item fit residual | Â | Â |
âââMean a | -0.571 | -0.488 |
âââSD b | 1.416 | 1.250 |
Total item-trait interaction | Â | Â |
âââChi-square (df) | 134.337 (120) | 188.538 (155) |
âââP-value | 0.175 | 0.034 |
Reliability c | 0.841 | 0.844 |