Domain | Pre CFA | Post CFA | ||
Items, n | Cronbach alpha* | Items, n | Average inter-item correlation | |
Access | 6 | 0.68 | 4 | 0.30 |
Communication | 12 | 0.86 | 6 | 0.84 |
External policy | 2 | 0.40 | No change | |
Information flow | 5 | 0.36 | 4 | 0.47 |
Organisation care planning | 5 | 0.10 | 3 | 0.25 |
Patient-related factors | 7 | 0.66 | 2 | 0.71 |
Physical environment | 2 | 0.43 | No change | |
Referrals | 2 | 0.46 | No change | |
Task performance | 7 | 0.68 | 3 | 0.38 |
Team factors | 2 | 0.18 | Domain deleted |
Data were collected in 2017 in nine general practices within Greater Manchester, UK. A total of 490 patients were included in the study.
*Average inter-item calculated for scales with fewer than seven items.
CFA, confirmatory factor analysis; PC MOS, Primary Care Patient Measure of Safety.