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A preliminary psychometric evaluation of Music in Dementia Assessment Scales (MiDAS)

McDermott, O; Orgeta, V; Ridder, HM; Orrell, M; (2014) A preliminary psychometric evaluation of Music in Dementia Assessment Scales (MiDAS). International Psychogeriatrics , 26 (6) pp. 1011-1019. 10.1017/S1041610214000180. Green open access

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Abstract

Background: Music in Dementia Assessment Scales (MiDAS), an observational outcome measure for music therapy with people with moderate to severe dementia, was developed from qualitative data of focus groups and interviews. Expert and peer consultations were conducted at each stage of the scale development to maximize its content validity. This study aimed to evaluate the psychometric properties of MiDAS. Methods: Care home residents with dementia attended weekly group music therapy for up to ten sessions. Music therapists and care home staff were requested to complete weekly MiDAS ratings. The Quality of Life Scale (QoL-AD) was completed at three time-points. Results: A total of 629 (staff = 306, therapist = 323) MiDAS forms were completed. The statistical analysis revealed that MiDAS has high therapist inter-rater reliability, low staff inter-rater reliability, adequate staff test-retest reliability, adequate concurrent validity, and good construct validity. High factor loadings between the five MiDAS Visual Analogue Scale (VAS) items, levels of Interest, Response, Initiation, Involvement, and Enjoyment, were found. Conclusions: This study indicates that MiDAS has good psychometric properties despite the small sample size. Future research with a larger sample size could provide a more in-depth psychometric evaluation, including further exploration of the underlying factors. MiDAS provides a measure of engagement with musical experience and offers insight into who is likely to benefit on other outcomes such as quality of life or reduction in psychiatric symptoms.

Type: Article
Title: A preliminary psychometric evaluation of Music in Dementia Assessment Scales (MiDAS)
Open access status: An open access version is available from UCL Discovery
DOI: 10.1017/S1041610214000180
Publisher version: https://doi.org/10.1017/S1041610214000180
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Social Sciences, Science & Technology, Life Sciences & Biomedicine, Psychology, Clinical, Geriatrics & Gerontology, Gerontology, Psychiatry, Psychology, assessment, outcome measure, psychometric evaluation, music therapy, dementia, QUALITY-OF-LIFE, PSYCHOSOCIAL TREATMENTS, PSYCHOLOGICAL SYMPTOMS, SAMPLE-SIZE, THERAPY, INTERVENTION, STANDARDS, PEOPLE, CARE, QOL
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Division of Psychiatry
URI: https://discovery.ucl.ac.uk/id/eprint/10049755

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