Table 2. Correlations between Three Potential Scoring Methods and Various Assessments of Validity.
Score method (alpha) | TOFHLA | Oral health knowledge | OHIP | Medical materials | Years education | Overall health |
---|---|---|---|---|---|---|
OHLA-S pronunciation and comprehension (0.70) | 0.53 | 0.26 | 0.29 | 0.28 | 0.44 | 0.18 |
OHLA-S comprehension extra credit (0.78) | 0.58 | 0.16 | 0.32 | 0.26 | 0.44 | 0.13 |
OHLA-S pronunciation only (0.80) | 0.56 | 0.02 | 0.35 | 0.20 | 0.34 | 0.06 |
OHLA-E pronunciation and comprehension (0.82) | 0.49 | 0.33 | 0.48 | 0.32 | 0.31 | 0.05 |
Correlations in bold are P ≤ 0.05.
Medical Materials, three items measuring patients' difficulties in understanding written medical and dental materials; OHIP, Oral Health Impact Profile; OHLA-E, Oral Health Literacy Assessment in English; OHLA-S, Oral Health Literacy Assessment in Spanish; TOFHLA, Test of Functional Health Literacy in Adults.