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dc.contributor.authorde Oliveira, Deborah
dc.contributor.authorOrrell, Martin
dc.date.accessioned2019-05-14T07:51:11Z
dc.date.available2019-05-14T07:51:11Z
dc.date.issued2019
dc.identifier.citationde Oliveira, D., Aubeeluck, A., Stupple, E., Kim, S. & Orrell, M. (2019). Factor and reliability analysis of a brief scale to measure motivation to change lifestyle for dementia risk reduction in the UK: the MOCHAD-10. Health and Quality of Life Outcomes, 17 (1), pp.75.en
dc.identifier.other10.1186/s12955-019-1143-8
dc.identifier.urihttp://hdl.handle.net/20.500.12904/8001
dc.description© The Author(s). 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated
dc.description.abstractBACKGROUND: Modifying lifestyle risk factors for dementia is a public health priority. Motivation for change is integral to the modification of health-related risk behaviours. This study investigates the psychometric properties of the previously validated tool entitled 'Motivation to Change Lifestyle and Health Behaviours for Dementia Risk Reduction Scale' (MCLHB-DRR) for use in the UK. METHODS: A sample of 3,948 individuals aged 50 and over completed the 27-item MCLHB-DRR online. The psychometric properties of the scale were explored via Exploratory Principal Axis Factoring (PAF) with Oblimin rotation. Confirmatory Factor Analysis (CFA) was used to confirm the factor structure using chi-square (chi2), the goodness-of-fit index (GFI), the comparative fit index (CFI), the root mean square error of approximation (RMSEA) and Root Mean Square Residual (RMR) as fit indices to evaluate the model fit. Internal consistency (Cronbach alpha) was measured for the final scale version. RESULTS: Exploratory Factor Analysis (EFA) resulted in a parsimonious 10-item, two-factor structure (5 items each, factor loadings > 0.3) that explained 52.83% of total variance. Based on the Pattern Matrix, Factor 1 was labelled "Positive Cues to Action" and Factor 2 was labelled "Negative Cues to Action". After addressing some errors in covariances, CFA showed a good fit where all fit indices were larger than 0.90 (GFI = 0.968, CFI = 0.938) and smaller than 0.08 (RMSEA = 0.072, RMR = 0.041). The standardized coefficients of Factor 1 and Factor 2 ranged from 0.30 to 0.73 and were all statistically significant (p < 0.001). The final scale showed moderate to high reliability scores (Factor 1 alpha = 0.809; Factor 2 alpha = 0.701; Overall alpha = 0.785). CONCLUSIONS: The new MOCHAD-10 (Motivation to Change Behaviour for Dementia Risk Reduction Scale) is a short, reliable and robust two-factor, 10-item clinical tool for use in preventative health care and research to evaluate motivation to change lifestyle for dementia risk reduction.en
dc.description.urihttps://hqlo.biomedcentral.com/articles/10.1186/s12955-019-1143-8en
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dc.subjectDementiaen
dc.subjectOutcome assessment (Health care)en
dc.subjectPsychometricsen
dc.titleFactor and reliability analysis of a brief scale to measure motivation to change lifestyle for dementia risk reduction in the UK: the MOCHAD-10en
dc.typeArticleen
refterms.dateFOA2021-06-14T09:30:37Z


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