A novel construct of anhedonia revealed in a Chinese sample via the Revised Physical and Social Anhedonia Scales
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RESEARCH ARTICLE
Open Access
A novel construct of anhedonia revealed in a Chinese sample via the Revised Physical and Social Anhedonia Scales Qiongqiong Wu1†, Jiayue He1†, Shulin Fang1, Panwen Zhang1, Xingwei Luo1, Jianghua Zhang2, Yan Xiong2, Fusheng Luo3, Xiaosheng Wang4, Shuqiao Yao1,5,6 and Xiang Wang1,5,6*
Abstract Background: Anhedonia is a core clinical symptom of mental disorders. The Revised Physical Anhedonia Scale (RPAS) and the Revised Social Anhedonia Scale (RSAS) have been applied in clinical and non-clinical samples since 1980s. However, the construct of a unified RPAS&RSAS for comprehensive measurement of anhedonia has never been explored. Therefore, the purpose of our study was to examine the factor structure of the unified RPAS&RSAS among undergraduates and clinical patients. Methods: A total of 3435 undergraduates from two universities and 294 clinical patients with mental disorders had completed the Chinese version of the RPAS and the RSAS. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were each conducted to reveal the constructs of the RPAS and the RSAS. CFA was used to evaluate first- and second-order models for the unified RPAS&RSAS in undergraduates and clinical patients. The internal consistency and test-retest reliability of the RPAS and the RSAS were also evaluated. Results: EFA and CFA indicated 2-factor structures for RPAS and RSAS, with the factors being defined as anticipatory anhedonia and consummatory anhedonia. The second-order model of the unified RPAS&RSAS in the undergraduates and clinical patients both had satisfactory fit index values (Undergraduate sample: CFI = 0.901, TLI = 0.899, RMSEA = 0.055, SRMR = 0.086; Clinical sample: CFI = 0.922, TLI = 0.911, RMSEA = 0.052, SRMR = 0.078). The psychometric robustness of the RPAS&RSAS were confirmed by high internal consistency and test-retest reliability values. Conclusions: The unified RPAS&RSAS with a second-order structure was confirmed in both undergraduates and clinical samples in Chinese. The construct of anhedonia was refreshed as covering physical and social domains, and each of them includes both anticipatory and consummatory components. Keywords: Anhedonia, Revised Physical Anhedonia Scale (RPAS), Revised Social Anhedonia Scale (RSAS) , Factor structure, Second-order hierarchical model, Chinese version
* Correspondence: [email protected]; [email protected] † Qiongqiong Wu and Jiayue He contributed equally to this work. 1 Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha 410011, China 5 Medical Psychological Institute of Central South University, Changsha 410011, China Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide
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