To examine whether lack of measurement invariance (MI) influences mean comparisons among different disease groups, this paper provides (1) a systematic review of MI in generic constructs across chronic conditions and (2) an empirical analysis of MI in the Health Education Impact Questionnaire (heiQ&trade;)

Bengel,J

Faller,H

Musekamp,G

Nolte,S

Osborne,RH

Schuler,M

Health and Quality of Life Outcomes

PubMed

Background



To examine whether lack of measurement invariance (MI) influences mean comparisons among different disease groups, this paper provides (1) a systematic review of MI in generic constructs across chronic conditions and (2) an empirical analysis of MI in the Health Education Impact Questionnaire (heiQ™).



Methods



(1) We searched for studies of MI among different chronic conditions in online databases. (2) Multigroup confirmatory factor analyses were used to study MI among five chronic conditions (orthopedic condition, rheumatism, asthma, COPD, cancer) in the heiQ™ with N = 1404 rehabilitation inpatients. Impact on latent and composite mean differences was examined.



Results



(1) A total of 30 relevant studies suggested that about one in three items lacked MI. However, only four studies examined impact on latent mean differences. Scale means were only affected in one of these three studies. (2) Across the eight heiQ™ scales, seven scales had items with lack of MI in at least one disease group. However, in only two heiQ™ scales were some latent or composite mean differences affected.



Conclusions



Lack of MI among disease groups is common and may have a relevant influence on mean comparisons when using generic instruments. Therefore, when comparing disease groups, tests of MI should be implemented. More studies of MI and according impact on mean differences in generic questionnaires are needed

Schuler, Michael

Musekamp, Gunda

Bengel, Jürgen

Nolte, Sandra

Osborne, Richard H.

Faller, Hermann

Online-Publikations-Server der Universität Würzburg

Measurement invariance across chronic conditions: a systematic review and an empirical investigation of the Health Education Impact Questionnaire (heiQ™)

FreiDok plus

Michael Schuler

Gunda Musekamp

Jürgen Bengel

Sandra Nolte

Richard H Osborne

Hermann Faller

Springer - Publisher Connector

Crossref

English

https://hqlo.biomedcentral.com/track/pdf/10.1186/1477-7525-12-56?site=hqlo.biomedcentral.com

Measurement invariance across chronic conditions: a systematic review and an empirical investigation of the Health Education Impact Questionnaire (heiQ™).

Measurement invariance across chronic conditions: a systematic review and an empirical investigation of the Health Education Impact Questionnaire (heiQ™).

Abstract

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Online-Publikations-Server der Universität Würzburg

FreiDok plus

Springer - Publisher Connector

Springer - Publisher Connector

Crossref