Table 1 A summary of scales of the standard Chinese SF12v2 in adolescents
From: Evaluation of internal reliability in the presence of inconsistent responses
| Â | Scales | ||
|---|---|---|---|
| Â | Role emotional (RE) | Physical functioning (PF) | Mental health (MH) |
Number of response categories (K) | 5 | 3 | 5 |
Number of items | Â | Â | Â |
   Positive polarity (m+) | 2 | 2 | 1 |
   Negative polarity (m-) | 0 | 0 | 1 |
Number of respondents | 32939 | 32924 | 33025 |
Mean | 7.58 | 5.57 | 7.02 |
Variance | 4.05 | 0.65 | 2.62 |
Floora | 2.2% | 1.0% | 0.6% |
Ceilingb | 25.7% | 72.7% | 6.7% |
Cronbach's alpha | 0.87 | 0.67 | 0.33 |