Use of rasch methodology to develop a short version of the health related quality of life for eating disorders questionnaire: a prospective study

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dc.contributor.authorLas Hayas Rodríguez, Carlota
dc.contributor.authorQuintana López, José María
dc.contributor.authorPadierna Acero, Jesús Angel
dc.contributor.authorBilbao González, Amaia
dc.contributor.authorMuñoz Dominguez, Pedro
dc.date.accessioned2026-08-25T10:42:47Z
dc.date.available2026-08-25T10:42:47Z
dc.date.issued2010-03-18
dc.date.updated2026-08-25T10:42:47Z
dc.description.abstractTo confirm the internal structure of the Health Related Quality of Life for Eating Disorders version 2 questionnaire (HeRQoLEDv2) and create and validate a shortened version (HeRQoLED-S). 324 patients with eating disorders were assessed at baseline and one year later (75.6% of whom responded). We performed a confirmatory factor analysis of the HeRQoLEDv2 using baseline data, and then a Rasch analysis to shorten the questionnaire. Data obtained at year one was used to confirm the structure of the HeRQoLED short form and evaluate its validity and reliability. Two latent second-order factors – social maladjustment and mental health and functionality – fit the data for the HeRQoLEDv2. Rasch analysis was computed separately for the two latent second-order factors and shortened the HeRQoLEDv2 to 20 items. Infit and outfit indices were acceptable, with the confirmatory factor analysis of the HeRQoLED short form giving a root mean square error of approximation of 0.07, a non-normed fit index and a comparative fit index exceeding 0.90. The validity was also supported by the correlation with the convergent measures: the social maladjustment factor correlated 0.82 with the dieting concern factor of the Eating Attitudes Test-26 and the mental health and functionality factor correlated -0.69 with the mental summary component of the Short Form-12. Cronbach alphas exceeded 0.89. Two main factors, social maladjustment and mental health and functionality, explain the majority of HeRQoLEDv2 scores. The shortened version maintains good psychometric properties, though it must be validated in independent samples.en
dc.description.sponsorshipPartially supported by the Instituto de Salud Carlos III (Reference: 00/0115), the Fondo Europeo de Desarrollo Regional (FEDER) and the Department of Education, Universities and Research of the Basque Governmenten
dc.identifier.citationLas Hayas, C., Quintana, J. M., Padierna, J. A., Bilbao, A., & Muñoz, P. (2010). Use of rasch methodology to develop a short version of the health related quality of life for eating disorders questionnaire: a prospective study. Health and Quality of Life Outcomes, 8. https://doi.org/10.1186/1477-7525-8-29
dc.identifier.doi10.1186/1477-7525-8-29
dc.identifier.eissn1477-7525
dc.identifier.urihttps://hdl.handle.net/20.500.14454/6518
dc.language.isoeng
dc.rights© 2010 Las Hayas et al.
dc.titleUse of rasch methodology to develop a short version of the health related quality of life for eating disorders questionnaire: a prospective studyen
dc.typejournal article
dcterms.accessRightsopen access
oaire.citation.titleHealth and Quality of Life Outcomes
oaire.citation.volume8
oaire.licenseConditionhttps://creativecommons.org/licenses/by/4.0/
oaire.versionVoR
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