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Validating the Functional, Communicative and Critical Health Literacy Scale Using Rasch Modeling and Confirmatory Factor Analysis

Finbråten, Hanne Søberg; Guttersrud, Øystein; Nordström, Gun; Pettersen, Kjell Sverre; Trollvik, Anne; Larsson, Bodil Wilde
Journal article; AcceptedVersion; Peer reviewed
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Validating+FCCHLJNM_postprint.pdf (573.3Kb)
Year
2018
Permanent link
http://urn.nb.no/URN:NBN:no-70296

CRIStin
1485030

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  • Naturfagsenteret [43]
  • CRIStin høstingsarkiv [22204]
Original version
Journal of Nursing Measurement. 2018, 26 (2), 341-363, DOI: http://dx.doi.org/10.1891/1061-3749.26.2.341
Abstract
Background and Purpose: The functional, communicative, and critical health literacy (FCCHL) scale is widely used for assessing health literacy (HL) in people with chronic diseases, such as type 2 diabetes (T2DM). Despite related subscales, researchers continue to apply a consecutive modeling approach, treating the three subscales as independent. This article studies the psychometric characteristics of the FCCHL by applying multidimensional modeling approaches.

Methods: Rasch modeling and confirmatory factor analyses were applied to responses (paper-and-pencil) from 386 adults with T2DM.

Results: Using a six-point rating scale and a three-dimensional Rasch model, this study found that a 12-item version of the FCCHL reduced within-item bias and improved subscale reliability indexes.

Conclusion: This study suggests a parsimonious 12-item version of the FCCHL. The data fit a three-dimensional Rasch model best.
 
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