Psychometric properties of two abbreviated Connor—Davidson Resilience scales in Chinese infertile couples

Purpose This study aimed to evaluate the psychometric properties of the 10-item and 2-item Connor–Davidson Resilience Scale (CD-RISC), the agreement between these two versions, and the measurement invariance of the CD-RISC-10 across genders in Chinese infertile couples. Methods A total of 170 infertile couples were enrolled from an infertility outpatient clinic between September 2019 and January 2020. The CD-RISC scores were tested for floor and ceiling effects. Reliability was evaluated by calculating Cronbach’s α . Convergent and divergent validity were assessed by bivariate correlations between resilience and infertility-related stress, depression, anxiety, and two divergent variables. Agreement between the two versions was evaluated using the intraclass correlation coefficient (ICC) and Bland–Altman analysis. A multiple-group confirmatory factor analysis (CFA) was conducted to assess the measurement equivalence of CD-RISC-10 across genders. Results No floor or ceiling effects were observed. Internal consistencies of CD-RISC-10 and CD-RISC-2 were 0.91 and 0.63, respectively. The CFA analysis indicated an excellent model fit for a one-factor structure of CD-RISC-10 (TLI > 0.950, CFI > 0.950, RMSEA