Original Article

Development of a reaction scale for dementia patients during recreational activities: a trial study of interobserver reliability and criterion-related validity

Masaki Kamiya, OT, MS, Izumi Kondo, MD, PhD, Aiko Osawa, MD, PhD
Jpn J Compr Rehabil Sci 8: 109-114, 2017

Objective: Recreational therapy is often provided for patients with dementia, but there are few indices on the reactions of patients during therapy, making evaluation difficult. The objective of this study was to create a new observational index capable of evaluating the reactions of elderly people with dementia, and to demonstrate its utility.
Methods: The observational index developed by Ishihara et al. was modified, and its interobserver reliability was examined by two assessors who evaluated 16 patients (mean age: 80.2 } 7.2 years, mean Mini Mental State Examination [MMSE] score: 18.3 } 7.9) hospitalized on dementia and geriatric wards to calculate the kappa coefficients. Criterionrelated validity was examined by evaluating 33 patients meeting the same conditions (mean age: 80.8 } 8.4 years, mean MMSE score: 15.6 } 6.8) using this index and the Observed Emotion Rating Scale to calculate Spearmanfs rank correlation coefficient.
Results: The examination of interobserver reliability produced kappa coefficients of 0.57 to 0.67, while the examination of criterion-related validity produced correlation coefficients of 0.56 to 0.86 (p < 0.001).
Conclusion: The interobserver reliability and criterionrelated validity of the index examined in this study were of a sufficient level for this index to be used in clinical settings to evaluate dementia patients.

Key words: dementia, observational evaluation, recreation, reliability, validity

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