The overall quality of measurement properties for each health literacy instrument used in children and adolescents
| Health literacy instrument | Internal consistency | Reliability | Measurement error | Content validity | Construct validity | Responsive ness | ||
| Structural validity | Hypotheses testing | Cross-cultural validity | ||||||
| NVS39 50 52 | ? | na | na | ? | na | ± | na | na |
| TOFHLA48 | na | na | na | ? | na | − | na | na |
| s-TOFHLA50 | ? | na | na | ? | na | − | na | na |
| c-sTOFHLAd51 | + | + | na | ++ | ? | + | ? | na |
| REALM-Teen41 50 | ? | + | na | ++ | na | + | na | na |
| HLAB40 | + | ? | na | ++ | na | − | na | na |
| MMAHL44 | ++ | na | na | ++ | − − | na | na | na |
| MHL49 | ? | na | na | ++ | na | ++ | na | na |
| DNT-3953 | + | na | na | ? | na | − | na | na |
| DNT-1453 | + | na | na | ? | na | − | na | na |
| eHEALS43 | + | − | na | ++ | + | − | na | na |
| CHC Test47 | na | ? | na | ++ | ? | na | na | na |
| HKACSS46 | +++ (HC) − − − (HA) | na | na | ++ | na | ++ | na | na |
| HLAT-5142 | ? | na | na | ++ | ? | na | na | na |
| HLAT-845 | − − − | na | na | ? | +++ | ++ | na | na |
| CHLT54 | + | na | na | ++ | + | + | na | na |
| VOHL55 | na | − (TS) + (GS) | na | na | na | − | na | + |
| HAS-A56 | + | na | na | ++ | + | − | na | na |
| MaHeLi57 | + | na | na | ? | + | na | na | na |
| QuALiSMental64 | − | na | na | +++ | + | + | na | na |
| FCCHL-AYAC65 | + (FHL) − (IHL) + (CHL) | na | na | ++ | + | − | na | na |
| ICHL58 | na | na | na | ++ | na | + | na | na |
| HELMA59 | ++ | ++ | na | ++ | ++ | na | na | na |
| HLSAC60 | + | + | na | ++ | − | + | na | na |
| REALM-TeenS66 | ++ | na | na | ++ | na | ++ | na | na |
| funHLS-YA61 | + | na | na | ? | + | − | na | na |
| HLS-TCO62 | + | na | na | ++ | + | + | na | na |
| HLRS-Y63 | + | na | na | +++ | + | + | na | na |
| p_HLAT-867 | + | na | na | ++ | + | − | + | na |
+ or −, limited evidence and positive/negative result; ++ or − − , moderate evidence and positive/negative result; +++ or − − − , strong evidence and positive/negative result; ±, conflicting evidence; ?, unknown due to poor methodological quality or indeterminate rating of a measurement property; c-sTOFHLAd, Chinese version of short-form Test of Functional Health Literacy in Adolescents; CHC Test, Critical Health Competence Test; CHL, Critical Health Literacy; CHLT, Child Health Literacy Test; DNT, Diabetes Numeracy Test; eHEALS, eHealth Literacy Scale; FCCHL-AYAC, Functional, Communicative, and Critical Health Literacy-Adolescents and Young Adults Cancer; FHL, Functional Health Literacy; funHLS-YA, Functional Health Literacy Scale for Young Adults; GS, Gingiva Score; HA, health attitude; HAS-A, Health Literacy Assessment Scale for Adolescents; HC, health communication; HELMA, Health Literacy Measure for Adolescents; HKACSS, Health Knowledge, Attitudes, Communication and Self-efficacy Scale; HLAB, Health Literacy Assessment Booklet; HLAT-8, 8-item Health Literacy Assessment Tool; HLAT-51, 51-item Health Literacy Assessment Tool; HLRS-Y, Health Literacy and Resiliency Scale: Youth Version; HLS-TCO, Health Literacy Scale for Thai Childhood Overweight; HLSAC, Health Literacy for School-aged Children; ICHL, Interactive and Critical Health Literacy; IHL, interactive health literacy; MaHeLi, Maternal Health Literacy; MHL, Media Health Literacy; MMAHL, Multidimensional Measure of Adolescent Health Literacy; na, no information available; NVS, Newest Vital Sign; p_HLAT-8, Portuguese version of the 8-item Health Literacy Assessment Tool; QuALiSMental, Questionnaire for Assessment of Mental Health Literacy; REALM-Teen, Rapid Estimate of Adolescent Literacy in Medicine; REALM-TeenS, Rapid Estimate of Adolescent Literacy in Medicine Short Form; s-TOFHLA, short-form Test of Functional Health Literacy in Adults; TOFHLA, Test of Functional Health Literacy in Adults; TS, Tooth Score; VOHL, Visual Oral Health Literacy.