Reliability of the Two-dimensional Mood Scale for self-reported mood assessment by older adults with dementia

Takuya Kobayashi; Takumi Igusa; Hiroyuki Uchida; Kenji Tsuchiya; Takanari Akiba; Tsuyoshi Takahashi; Maya Taguchi; Chihiro Okada; Hasumi Yabuki; Yukina Kanazawa; Senichiro Kikuchi; Kazuki Hirao

doi:10.1016/j.gerinurse.2024.06.016

Reliability of the Two-dimensional Mood Scale for self-reported mood assessment by older adults with dementia

Geriatr Nurs. 2024 Jul-Aug:58:459-465. doi: 10.1016/j.gerinurse.2024.06.016. Epub 2024 Jun 27.

Authors

Affiliations

¹ Graduate School of Health Sciences, Gunma University, Maebashi, Japan; Department of Rehabilitation, Japan Community Healthcare Organization, Gunma Chuo Hospital, Maebashi, Japan.
² Graduate School of Health Sciences, Gunma University, Maebashi, Japan; Department of Rehabilitation, Medical Corporation Taiseikai, Uchida Hospital, Numata, Japan.
³ Graduate School of Health Sciences, Gunma University, Maebashi, Japan; Department of Rehabilitation, Kurashiki Heisei Hospital, Kurashiki, Japan.
⁴ Department of Rehabilitation, Faculty of Health Sciences, Nagano University of Health and Medicine, Nagano, Japan.
⁵ Department of Rehabilitation, Japan Community Healthcare Organization, Gunma Chuo Hospital, Maebashi, Japan.
⁶ Graduate School of Health Sciences, Gunma University, Maebashi, Japan.
⁷ Graduate School of Health Sciences, Gunma University, Maebashi, Japan. Electronic address: [email protected].

PMID: 38941790
DOI: 10.1016/j.gerinurse.2024.06.016

Abstract

The purpose of this study was to evaluate the reliability of the Two-dimensional Mood Scale (TDMS) for mood assessment among older adults with dementia. The study included 100 elderly patients with dementia admitted to two hospitals. For each mood state measured by the TDMS, the intraclass correlation coefficient of agreement (ICC_agreement) was calculated to evaluate test-retest reliability. Scores corresponding to the minimal detectable change (MDC) in each mood state at the individual level (MDC_ind) was also calculated to evaluate measurement error, while McDonald's omega was calculated to evaluate internal consistency. The TDMS ICC was 0.54 for vitality, 0.74 for stability, 0.70 for pleasure, and 0.55 for arousal. The MDC_ind was 6.89 for vitality, 5.88 for stability, 9.96 for pleasure, and 4.11 for arousal. McDonald's omega ranged from 0.60 to 0.84. The TDMS has generally acceptable reliability for the self-assessment of mood states by older adults with dementia.

Keywords: Dementia; Mood; Older adults; Patient-reported outcome measures; Reliability.

MeSH terms

Affect*
Aged
Aged, 80 and over
Dementia* / psychology
Female
Humans
Male
Reproducibility of Results
Self Report*