A validation study of the Intentional Nonadherence Scale among people with type 2 diabetes in the United Kingdom
Authors' conclusion
The INAS performed well on a number of psychometric properties in this study. It may be a helpful tool for clinicians in identifying specific drivers of intentional nonadherence among PwT2D.
Study context
- Population
- People with T2D at diabetes intermediate care team clinics in London, UK
- Participants
- 260 people
- Outcome
- Psychometric properties of the INAS
Performance
As reported in the abstract
Internal reliability of all Intentional Nonadherence Scale (INAS) factors (Cronbach's alpha)
0.92-0.96
Test-retest reliability (2-4 weeks; n=30)
<0.001 and 0.92
Further findings
Predictive validity: 'Testing Treatment' vs adherence · 3-6 months
- Coefficient (trend towards statistical significance; n=124 followed up), p = 0.09
- −0.34
Original publication
A validation study of the Intentional Nonadherence Scale among people with type 2 diabetes in the United Kingdom. Diabet Med. Published 5 April 2025. doi:10.
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