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Measurement invariance of the Positive Gains Scale in families of children with and without disabilities
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Jess, Mikeda , Bailey, Tom, Pit-ten Cate, Ineke M., Totsika, Vasiliki and Hastings, Richard P. (2020) Measurement invariance of the Positive Gains Scale in families of children with and without disabilities. Research in Developmental Disabilities, 103 . 103662. doi:10.1016/j.ridd.2020.103662
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Official URL: https://doi.org/10.1016/j.ridd.2020.103662
Abstract
Aims
The present study sought to establish measurement invariance for the Positive Gains Scale (PGS) across 1219 mothers of children with developmental disabilities, 234 mothers of children with spina bifida/hydrocephalus, and 157 mothers of children without disabilities.
Methods and procedures
A three-step test for measurement invariance across the three groups was conducted using Multigroup Confirmatory Factor Analysis.
Outcomes and results
Loadings between the three groups were invariant, suggesting the criteria to assume metric invariance was met. However, the assumption of scalar invariance was not met, suggesting that item intercepts differed between the three groups.
Conclusions and implications
Our findings suggest that the PGS cannot be meaningfully used to compare outcomes between mothers of children with developmental disabilities and other mothers. These findings may have wider implications for research utilising well-being measures to make comparisons with carers of children with developmental disabilities.
| Item Type: | Journal Article | ||||||||
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| Subjects: | R Medicine > RC Internal medicine | ||||||||
| Divisions: | Faculty of Social Sciences > Centre for Educational Development, Appraisal and Research (CEDAR) | ||||||||
| Library of Congress Subject Headings (LCSH): | Developmental disabilities -- Research, Social sciences -- Statistical methods, Psychometrics, Epidemiology -- Statistical methods, Case-control method | ||||||||
| Journal or Publication Title: | Research in Developmental Disabilities | ||||||||
| Publisher: | Elsevier | ||||||||
| ISSN: | 0891-4222 | ||||||||
| Official Date: | August 2020 | ||||||||
| Dates: |
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| Volume: | 103 | ||||||||
| Article Number: | 103662 | ||||||||
| DOI: | 10.1016/j.ridd.2020.103662 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access | ||||||||
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