Table 3 Internal consistency and floor and ceiling effects of the 14-item health literacy scale (HLS-14)
From: The 14-item health literacy scale for Japanese adults (HLS-14)
Mean ± SD | Cronbach’s alpha | Lowest score, N (%) | Highest score, N (%) | |
|---|---|---|---|---|
Total health literacy score, Q1–Q14 | 50.3 ± 6.8 | 0.81 | 0 (0.0) | 1 (0.1) |
Functional health literacy score, Q1–Q5 | 19.1 ± 3.6 | 0.83 | 1 (0.1) | 120 (8.0) |
Communicative health literacy score, Q6–Q10 | 17.8 ± 3.6 | 0.85 | 10 (0.7) | 41 (2.7) |
Critical health literacy score, Q11–Q14 | 13.4 ± 2.7 | 0.76 | 12 (0.8) | 16 (1.1) |