Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ORIGINAL ARTICLES
Validity and Reliability Assessment of a Japanese Version of the Snaith-Hamilton Pleasure Scale
Hiroshi NagayamaShin-ichiro KuboTaku HatanoShinsuke HamadaTetsuya MaedaTakafumi HasegawaTaro KadowakiHiroo TerashiMasayuki YoshiokaNobuatsu NomotoOsamu KanoManabu InoueHideki ShimuraTatsuya TakahashiTsuyoshi UchiyamaHirohisa WatanabeSatoshi KanekoTetsuya TakahashiYasuhiko Baba(Young Japanese Expert Group for Parkinson's Disease and Movement Disorders: YJ-EXPANDS)
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JOURNALS OPEN ACCESS

2012 Volume 51 Issue 8 Pages 865-869

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Abstract

Objective Anhedonia is one of the main non-motor symptoms in Parkinson's disease (PD); it is assessed using the Snaith-Hamilton pleasure scale (SHAPS). To assess anhedonia in the Japanese population, we prepared a Japanese language version of SHAPS (SHAPS-J), and evaluated its validity and reliability in 8 neurological centers. Seventy subjects (48 patients with PD and 22 healthy subjects) were enrolled in this study.
Methods The validity of the test was assessed by the correlation between SHAPS-J and the apathy scale, based on the fact that anhedonia is considered a symptom of apathy syndrome. Test-retest reliability and internal consistency were assessed by Cohen's kappa and Cronbach's alpha coefficients, respectively.
Results In the evaluation of validity, the total scores obtained on SHAPS-J during the test and retest significantly correlated with scores on Item 4 in Part 1 of the unified Parkinson's disease rating scale (p<0.0008 and p<0.0036, respectively). Cohen's kappa coefficient was >0.3 on all items (p<0.0005 on all items). Cronbach's alpha coefficient was 0.90 at the baseline and 0.88 at the retest.
Conclusion These results indicate that SHAPS-J has good validity, test-retest reliability, and internal consistency, thus establishing an available measure of anhedonia in Japanese.

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© 2012 by The Japanese Society of Internal Medicine
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