The reliability and validity of 10-item Connor-Davidson resilience scale in the community-dwelling older adults

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Objective To evaluate the reliability and validity of 10 items Connor-Davidson resilience scale (CD-RISC-10) in the community-dwelling older adults. Methods Totally 620 community-dwelling older adults randomly chosen from 16 communities in Chengdu city were investigated by CD-RISC-10, the geriatric depression scale short form (GDS-SF) and self-made basic condition questionnaire. Results The discrimination of the 10 items was statistically significant(t=6.84-13.57, P<0.01). Exploratory factor analysis showed two factors (strength and hardiness) were extracted, and the cumulative variance interpretation rate was 42.32%. Confirmatory factor analysis showed that model index of two sub-factors(χ2/df=1.518(P<0.001), CFI =0.964, TLI =0.948, IFI =0.965, NFI =0.904, RMSEA=0.042). Cronbach's α of the total scale and the two sub-factors were 0.737, 0.673 and 0.585 respectively. After half a month, the retest reliability coefficients of the total scale and the two sub-factors were 0.974, 0.932 and 0.941(P<0.01). Conclusion The CD-RISC-10 scale has acceptable reliability and validity, with using easily and conveniently. Therefore, it is an effective tool for measuring the resilience of the community-dwelling older adults.