Scientific Research
Reliability and validity of the Chinese version of Circadian Type Inventory in medical students
Wang Xiaohan, Wu Songqi, Fu Yue, Fei Wengling, Ma Yuanyuan, Wang Guodong, Wu Caiqin
Published 2022-02-15
Cite as IMHGN, 2022, 28(4): 479-483. DOI: 10.3760/cma.j.issn.1007-1245.2022.04.009
Abstract
ObjectiveTo translate the latest 11-item Circadian Type Inventory (CTI), and to verify its reliability and validity among undergraduates in medical universities.
MethodsThe Chinese version of CTI (C-CTI) was formed in the light of the modified Brislin translation model. A total of 308 undergraduates from Shanghai University of Traditional Chinese Medicine (sample 1) and 224 undergraduates from Xinxiang Medical University (sample 2) were selected for investigation by the convenient sampling between January and June 2018, and the reliability and validity of the C-CTI were tested. ① The critical ratio method and correlation analysis method were used to test the identity and homogeneity of the items; ② the expert consultation was used to test the content validity of the C-CTI; ③ the reliability of the C-CTI was tested by Cronbach coefficient, split reliability, and retest reliability. Independent sample t test was used for the measurement data. Pearson correlation analysis was used for correlation analysis.
ResultsIn the sample 1, there were 76 males and 207 females, 5 unknown cases, with an average age of 20.45 years old; in the sample 2, there were 27 males and 197 females, with an average age of 19.80 years old. The C-CTI included 11 items and 2 dimensions. The total variance contribution rate was 48.109%, and the Cronbach's α coefficients of circadian rhythm stability and amplitude were 0.817 and 0.654. The range of item-level content validity index (I-CVI) was from 0.83 to 1.00, the average of scale-level content validity index (S-CVI/Ave) was 0.95, and each item was related to the overall score (r=0.265-0.684, all P<0.001).
ConclusionThe C-CTI is suitable and robust enough for evaluating the circadian rhythm types among medical students.
Key words:
Circadian rhythm; Scale; Chinese version; Reliability; Validity
Contributor Information
Wang Xiaohan
School of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
School of Public Health, China Medical University, Shengyang 110001, China
Wu Songqi
School of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
Nursing Department, Tenth People's Hospital of Tongji University, Shanghai 200072, China
Fu Yue
School of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
Fei Wengling
School of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
Nursing Department, Tenth People's Hospital of Tongji University, Shanghai 200072, China
Ma Yuanyuan
School of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
Wang Guodong
School of Nursing, Xinxiang Medical University, Xinxiang 453004, China
Wu Caiqin
School of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
