December 2016

Volume 33, Issue 4

Psychometric properties of the English version of the Oral Health Literacy Adults Questionnaire - OHL-AQ

Authors: P.M. Flynn M.T. John A. Naik N. Kohli J.J. VanWormer K.Self
doi: 10.1922/CDH_3868Flynn07


Objective: To test the psychometric properties of the Oral Health Literacy Adult Questionnaire (OHL-AQ) in English. The OHL-AQ was designed to test functional oral health literacy in general populations and was initially validated in Iran. Methods: The instrument was administered to 405 adult subjects (mean age 45 (SD 16) years and 67% female) attending the 2014 Minnesota State Fair. The OHL-AQ is composed of 17 items measuring four conceptual dimensions: reading comprehension, numeracy, listening, and decisionmaking. Participants selected the best answer for written or verbally administered items and entered answers on an electronic tablet. Item responses for each individual were combined into a summary score (range 0–17) with higher scores indicating better oral health literacy. Score dimensionality, reliability, and validity were investigated. Results: For dimensionality, both exploratory factor analysis and a parallel analysis yielded evidence for scale unidimensionality. Reliability was sufficient indicated by a Cronbach’s alpha >0.74. Validity of scores was supported by “small” and “medium” effect sizes for construct validity. “Small” effect sizes were observed for global oral health self-report, OHIP-5 scores, treatment urgency, and having a regular dentist. “Medium” effect sizes were seen for presence of dentures, number of natural teeth present, and educational level. Conclusions: Dimensionality, reliability and validity of the English version of the OHL-AQ in a general adult English-speaking population is supported, providing sufficient psychometric properties in an important target population of the instrument. Key words: health literacy, psychometrics, factor analysis, functional oral health literacy, instrument validation, OHL-AQ


Other articles in this issue

Article Pages Access
Abstracts from the 21st Congress of the European Association of Dental Public Health, 29th September - 1st October, 2016, Budapest, Hungary 0-0 Download
Valedictory Editorial: The past six years 1-1 Download
An intervention study to assess the effectiveness of a reminder telephone call in improving patient appointment attendance at a Community Dental Service clinic 239-241 Download
The acceptability of healthcare: from satisfaction to trust 242-251 Download
Patient characteristics in relation to dental care payment model: capitation vs fee for service 252-256 Download
Payment systems and oral health in Swedish dental care: Observations over six years 257-261 Download
A summary of knowledge about the oral health of older people in England and Wales 262-266 Download
The use of diet diaries in general dental practice in England 267-273 Download
Psychometric properties of the English version of the Oral Health Literacy Adults Questionnaire - OHL-AQ 274-280 Download
Approximal caries increment in relation to baseline approximal caries prevalence among adolescents in Sweden with and without a school-based fluoride varnish programme 281-285 Download
Variation in methods used to determine national mean DMFT scores for 12-year-old children in European countries 286-291 Download
Prevalence and severity of dental fluorosis in four English cities 292-296 Download
The relationship between maternal smoking during pregnancy and parental-reported experience of dental caries in Indigenous Australian children 297-302 Download
Dental problems and Familismo: social network discussion of oral health issues among adults of Mexican origin living in the Midwest United States 303-308 Download


Online (Single user only)
Institution Online (IP address validation)

Back issues may be obtained from the publisher

Consider recommending subscription to your institution's library

You can view Open Access papers without a subscription.