Scripties UMCG - Rijksuniversiteit Groningen
 
English | Nederlands

Cross-cultural validation of the Motivation to Change Lifestyle and Health Behaviours for Dementia Risk Reduction scale in the Dutch general population

(2018) Joxhorst, T.

Introduction Around one third of the dementia cases worldwide are attributable to potentially modifiable risk factors, including low education, hypertension, obesity, hearing loss, smoking, depression, physical inactivity, social isolation and diabetes. Hence, behavioural change is a key element in interventions aimed at dementia prevention. Motivation is an important factor when explaining behavioural change according to the Integrated-Change model. Therefore, the Motivation to Change Lifestyle and Health Behaviours for Dementia Risk Reduction (MCLHB-DRR) scale was developed and validated in Australia. The objective of the current study was to translate and cross-culturally validate the MCLHB-DRR scale in the Dutch general population.
Methods Translation and back-translation of the MCLHB-DRR scale was performed to establish a well-translated Dutch version of the questionnaire. Data were collected by an online survey ‘Lifestyle and dementia’ among a random sample of 4500 residents of the municipality of Groningen aged between 30 and 80 years old. Exploratory and confirmatory factor analyses (EFA and CFA) were performed to cross-validate the MCLHB-DRR scale and Cronbach’s alpha was used to assess internal consistency.
Results A total of 618 participants who completed the survey, including the MCLHB-DRR scale, were included in the data analyses. EFA of a seven factor model including all 27 items and Cronbach’s alpha showed that four items were candidate for deletion. CFA confirmed that deleting these items led to an excellent fit (RMSEA = 0.043, CFI = 0.960, TLI = 0.951, χ²/df = 2.130). Cronbach’s alpha ranged from 0.691 to 0.928, indicating good internal consistency.
Conclusion The Dutch version of the MCLHB-DRR scale consisting of 23 items is a valid instrument to assess the attitudes and beliefs towards lifestyle and health behavioural changes for dementia risk reduction in the Dutch general population aged between 30 and 80 years old. Before the MCLHB-DRR scale can be used in intervention studies aimed at dementia risk reduction in the Netherlands, insight in the reproducibility and responsiveness is needed.






 
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