Objective: To evaluate existing measures of health numeracy using item response theory (IRT).
Methods: A cross-sectional study was conducted. Participants completed assessments of health numeracy measures including the Lipkus expanded health numeracy scale (Lipkus), and the Medical Data Interpretation Test (MDIT). The Lipkus and MDIT were scaled with IRT utilizing the two-parameter logistic model.
Results: Three-hundred and fifty-nine (359) participants were surveyed. Classical test theory parameters and IRT scaling parameters of the numeracy measures found most items to be at least moderately discriminating. Modified versions of the Lipkus and MDIT were scaled after eliminating items with low discrimination, high difficulty parameters, and poor model fit. The modified versions demonstrated a good range of discrimination and difficulty as indicated by the test information functions.
Conclusion: An IRT analysis of the Lipkus and MDIT indicate that both health numeracy scales discriminate well across a range of ability.
Practice Implications: Health numeracy skills are needed in order for patients to successfully participate in their medical care. The accurate assessment of health numeracy may help health care providers to tailor patient education interventions to the patient's level of understanding and ability. Item response theory scaling methods can be used to evaluate the discrimination and difficulty of individual items as well as the overall assessment.
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http://dx.doi.org/10.1016/j.pec.2009.03.035 | DOI Listing |
Genet Med
January 2025
Genomics Ethics, and Translational Research Program, RTI International, Research Triangle Park, NC; Department of Translational and Applied Genomics, Kaiser Permanente Center for Health Research, Portland, OR. Electronic address:
Purpose: Limited evidence evaluates parents' perceptions of their child's clinical genomic sequencing (GS) results, particularly among individuals from medically underserved groups. Five Clinical Sequencing Evidence-Generating Research (CSER) consortium studies performed GS in children with suspected genetic conditions with high proportions of individuals from underserved groups to address this evidence gap.
Methods: Parents completed surveys of perceived understanding, personal utility, and test-related distress after GS result disclosure.
Br J Educ Psychol
January 2025
School of Psychology and Counselling, Queensland University of Technology (QUT), Brisbane, Queensland, Australia.
Background: The transition from primary to secondary school presents a challenging developmental milestone which often marks a decline in academic performance. Social-emotional skills are recognized as fundamental to academic success but longitudinal research is needed to determine the extent of their association over this transition period.
Aim: This study sought to determine the association between self-reported social-emotional competencies of students in their final year of primary school (Year 6; age ~11 years) and reading and numeracy performance in their first year of secondary school (Year 7; age ~12 years).
Curr Diabetes Rev
January 2025
College of Nursing of the University of São Paulo at Ribeirão Preto Campus, Ribeirão Preto, São Paulo, Brasil.
Objective: The aim of this study was to synthesize scientific evidence on the influence of health literacy and numerical knowledge on self-monitoring of capillary blood glucose.
Methods: Adhering to the PRISMA guidelines and the principles of the Joanna Briggs Institute, a comprehensive search was conducted across multiple databases, including CINAHL, Cochrane, Embase, LILACS, PubMed, Scopus, Web of Science, Google Scholar, OPENGREY, and NDLTD. The review included studies published in any language that examined the relationship between HL, numeracy, and SMBG.
J Asthma Allergy
January 2025
Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, 11733, Jordan.
Background: The increasing global prevalence of asthma necessitates effective disease management, with patients and their families playing a central role. Enhancing health literacy (HL) among caregivers is critical to improving asthma outcomes.
Purpose: This study aimed to validate the Arabic version of the Asthma Numeracy Questionnaire (Ar-ANQ) to address the gap in HL assessment tools for Arabic-speaking populations.
Children's high and increasing levels of screen time are of growing concern to parents, health professionals, and researchers. With the growing availability and use of devices such as smartphones and tablets, it is important to understand the impact of children's screen use on development. Prospective longitudinal data from 6,281 children (48.
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