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Open AccessOriginal Article

Use of Item Response Models in Assessing the Health Literacy Facet Understanding Health Information for Early Childhood Allergy Prevention and Prevention of COVID-19 Infections by Pregnant Women and Mothers of Infants

Published Online:September 12, 2022https://doi.org/10.1026/0012-1924/a000298

Abstract

Abstract. Appropriate parental health literacy (HL) is essential to preventively maintain and promote child health. Understanding health information is assumed to be fundamental in HL models. We developed N = 67 items (multiple-choice format) based on information materials on early childhood allergy prevention (ECAP) and prevention of COVID-19 infections to assess the parental HL facet Understand. N = 343 pregnant women and mothers of infants completed the items in an online assessment. Using exploratory factor analysis for ordinal data (RML estimation) and item response models (1-pl and 2-pl model), we proved the psychometric homogeneity of the item pool. 57 items assess the latent dimension Understand according to the assumptions of the 1-pl model (weighted MNSQ < 1.2; separation reliability = .855). Person parameters of the latent trait Understand correlate specifically with subjective socioeconomic status (r = .27), school graduation (r = .46), allergy status (r = .11), and already infected with COVID-19 (r = .12). The calibrated item pool provides a psychometrically sound, construct-valid assessment of the HL facet Understand Health Information in the areas of ECAP and prevention of COVID-19 infections.


Anwendung von Item-Response-Modellen bei der Erfassung der Gesundheitskompetenzfacette Verstehen von Gesundheitsinformationen zur frühkindlichen Allergieprävention und der Prävention von COVID-19-Infektionen bei Schwangeren und Müttern von Kleinkindern

Zusammenfassung. Hinreichende elterliche Gesundheitskompetenz (GK) ist wesentlich, um die Gesundheit des Kindes erhalten und präventiv fördern zu können. Dem angemessenen Verstehen von Gesundheitsinformationen kommt in GK-Modellen eine grundlegende Funktion zu. Für die beiden Anwendungsgebiete frühkindliche Allergieprävention (FKAP) und Prävention von COVID-19 Infektionen wurden N = 67 Testitems auf Basis von Informationsmaterialien entwickelt. N = 343 Schwangere und Mütter von Kleinkindern bearbeiteten die Items in einer Online-Testung. 57 Testitems erfassen die latente Dimension Verstehen gemäß des 1-pl Item Response Modells (Weighted MNSQ < 1,2; Separations-Reliabilität = .874). Die Personenparameter der latent trait Verstehen von Gesundheitsinformationen korrelieren u. a. mit dem subjektiven sozioökonomischen Status (r = .27), dem Schulabschluss (r = .46), dem Allergiestatus (r = .11) und bereits erfolgter COVID-19-Infektion (r = .12) der Frauen. Die kalibrierte Itemgruppe erlaubt eine psychometrisch fundierte, konstruktvalide Erfassung der GK-Facette Verstehen von Gesundheitsinformation in den Anwendungsgebieten FKAP und Prävention von COVID-19-Infektionen.

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