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Table 3 Discriminant validity of the COHL (N = 370)

From: A new comprehensive oral health literacy scale: development and psychometric evaluation

  Range of scores Mean ± SD t P*
  Scores of PH Scores of PL
Knowledge 0–5 3.4 ± 1.3 1.0 ± 1.4 12.8 < 0.001
Belief 0–6 5.7 ± 0.5 4.5 ± 1.3 8.6 < 0.001
Skill 0–9 5.4 ± 1.8 2.0 ± 1.4 15.1 < 0.001
FOHL 0–10 8.2 ± 1.5 3.5 ± 2.1 18.2 < 0.001
Total 0–30 22.6 ± 1.7 11.0 ± 2.8 35.1 < 0.001
  1. *Obtained from two independent samples t-test