Objective:To translate and adapt the Apathy Evaluation Scale-Clinician (AES-C) into Chinese and test its reliability and validity in patients with Alzheimer 's disease (AD). Methods:Following Brislin′s translation model, the English version of the AES-C was translated, back-translated, cross-culturally adapted, and pre-surveyed, ultimately forming the Chinese version of the AES-C. Clinical data were prospectively collected from October 2022 to April 2024 for AD patients aged 55-85 years who were treated at the outpatient and inpatient psychiatric departments of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine. A total of 111 AD patients were recruited. Two weeks later, using systematic sampling, one patient was randomly selected from the first three cases as the starting point, followed by selecting patients at intervals of 3 and 4 alternately until 30 cases were selected. Item analysis of the scale was conducted using the critical ratio(CR) method. Content validity was assessed by calculating the item-level content validity index(I-CVI) and the scale-level content validity index (S-CVI). Structural validity was examined using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Reliability was examined by internal consistency reliability (Cronbach′s α coefficient) and test-retest reliability.Results:The CR values of each item analysis were>3.000 ( P<0.01). Low-relevant entries were deleted after a unanimous expert discussion of content validity, and the I-CVI and S-CVI were both 1.000. The Kaiser-Meyer-Olkin (KMO) value was 0.722, Bartlett′s test of spherical χ 2=621.286 ( df=55), P<0.01. Four common factors were extracted, with variance contribution rate of 33.0%, 15.3%, 15.1%, 15.1%, and 14.9%, for a cumulative variance contribution of 78.4%. CFA showed χ2/ df=1.778, Root Mean Square Error of Approximation (RMSEA)=0.084, Tucker-Lewis Index (TLI)=0.928, Goodness-of-Fit Index (GFI)=0.906, Comparative Fit Index (CFI)=0.950, and Incremental Fit Index (IFI)=0.952, and all the indexes of the model were in line with the model fit standards. Cronbach′s coefficient α was 0.809, and the retest reliability coefficient was 0.928. Conclusion:The Chinese version of the Apathy Evaluation Scale-Clinician (AES-C) demostrates good reliability and validity in AD patients.

Objective:To translate and adapt the Apathy Evaluation Scale-Clinician (AES-C) into Chinese and test its reliability and validity in patients with Alzheimer 's disease (AD). Methods:Following Brislin′s translation model, the English version of the AES-C was translated, back-translated, cross-culturally adapted, and pre-surveyed, ultimately forming the Chinese version of the AES-C. Clinical data were prospectively collected from October 2022 to April 2024 for AD patients aged 55-85 years who were treated at the outpatient and inpatient psychiatric departments of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine. A total of 111 AD patients were recruited. Two weeks later, using systematic sampling, one patient was randomly selected from the first three cases as the starting point, followed by selecting patients at intervals of 3 and 4 alternately until 30 cases were selected. Item analysis of the scale was conducted using the critical ratio(CR) method. Content validity was assessed by calculating the item-level content validity index(I-CVI) and the scale-level content validity index (S-CVI). Structural validity was examined using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Reliability was examined by internal consistency reliability (Cronbach′s α coefficient) and test-retest reliability.Results:The CR values of each item analysis were>3.000 ( P<0.01). Low-relevant entries were deleted after a unanimous expert discussion of content validity, and the I-CVI and S-CVI were both 1.000. The Kaiser-Meyer-Olkin (KMO) value was 0.722, Bartlett′s test of spherical χ 2=621.286 ( df=55), P<0.01. Four common factors were extracted, with variance contribution rate of 33.0%, 15.3%, 15.1%, 15.1%, and 14.9%, for a cumulative variance contribution of 78.4%. CFA showed χ2/ df=1.778, Root Mean Square Error of Approximation (RMSEA)=0.084, Tucker-Lewis Index (TLI)=0.928, Goodness-of-Fit Index (GFI)=0.906, Comparative Fit Index (CFI)=0.950, and Incremental Fit Index (IFI)=0.952, and all the indexes of the model were in line with the model fit standards. Cronbach′s coefficient α was 0.809, and the retest reliability coefficient was 0.928. Conclusion:The Chinese version of the Apathy Evaluation Scale-Clinician (AES-C) demostrates good reliability and validity in AD patients.