Indicator-total correlations and Cronbach’s alphas for standardised indicator scores
| Indicators | Indicator-total correlation | Cronbach’s alpha if item omitted |
|---|---|---|
| (1) High dose antipsychotics | 0.46 | 0.60 |
| (2) Antipsychotic polypharmacy | 0.63 | 0.55 |
| (3) Atypical polypharmacy | 0.35 | 0.64 |
| (4) Multiple PRN | 0.56 | 0.57 |
| (5) Low dose mood stabilisers | 0.32 | 0.64 |
| (6) Hypnotic prescribing | –0.04 | 0.73 |
| (7) Benzodiazepines:antidepressants | 0.41 | 0.62 |