SF-DEM is a patient- and carer-reported outcome measure designed for the assessment of the social functioning of people with dementia.
Scale development and validation
SF-DEM consists of two questionnaires.
- SF-DEM - Person with dementia: a 20 item interviewer-administered questionnaire answered by a person with dementia
- SF-DEM - Carer: a 20 item interviewer-administered questionnaire answered by a family carer of a person with dementia
The social functioning in dementia scale was developed and validated using key psychometric principles in a population of older people living in Camden and Islington, London and we undertook a further validation and established the factor structure in a multi-centre study based in London and Sussex.
Researchers in China, Germany, Japan, and Hong Kong are currently translating and validating the scale in their local settings.
Files for download
SF-DEM is freely available for use by other researchers under a Creative Commons Attribution-NonCommercial 4.0 International License.
- Sommerlad, A., Singleton, D., Jones, R., Banerjee, S., Livingston, G. Development of an instrument to assess social functioning in dementia: The Social Functioning in Dementia scale (SF-DEM). Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring. 2017: 7;88-98 doi: 10.1016/j.dadm.2017.02.001
Budgett J, Brown A, Daley S, Page T, Banerjee S, Livingston G, Sommerlad A. The social functioning in dementia scale (SF-DEM): Exploratory factor analysis and psychometric properties in mild, moderate and severe dementia. Alzheimer’s and Dementia Diagnosis, Assessment and Disease Monitoring 2019. 11:45-52 doi: 10.1016/j.dadm.2018.11.001