AUTHOR=Cao Ting , Zhang Shifang , Yu Mingming , Zhao Xiaoyan , Wan Qiaoqin 

TITLE=The Chinese Translation Study of the Cognitive Reserve Index Questionnaire

JOURNAL=Frontiers in Psychology

VOLUME=Volume 13 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2022.948740

DOI=10.3389/fpsyg.2022.948740

ISSN=1664-1078

ABSTRACT=Purpose: To perform the translation and adaption of Cognitive Reserve Index questionnaire into Chinese and assess the reliability of the Chinese version. 
Materials and methods: The Chinese version of Cognitive Reserve Index questionnaire was created from a standard forward-backward translation. A total of 371 volunteers, aged between 20 and 89 years, participated in this survey. Participants were divided into three age-groups (Young, Middle-aged, Elderly), and subgroup differences were examined by independent samples t-tests, ANOVA analysis as well as post-hoc analysis. Pearson correlation analysis was applied to test the association between the total scores and each subscore (CRI-Education, CRI-WorkingActivity and CRI-LeisureTime). The internal consistency and test-retest reliability of Cognitive Reserve Index questionnaire were assessed. The test-retest reliability was measured among 40 participants with a two-week interval using intraclass correlation coefficient. 
Results: Strong correlations were observed between the total scores and each subscore (CRI-Education, CRI-WorkingActivity and CRI-LeisureTime: r = 0.65, 0.79 and 0.70, respectively). In contrast, it was found low to moderate correlations among three subscores. The internal consistency was acceptable (Cronbach’s alpha coefficient = 0.68). The intraclass correlation coefficient for total scores of the Chinese version of Cognitive Reserve Index questionnaire was 0.87 (95% CI 0.74 ~ 0.93). 
Conclusions: The Chinese version of Cognitive Reserve Index questionnaire was a potentially reliable and practical tool for evaluating cognitive reserve accumulated through a person’s lifespan.