Structural validity of the Chronic Pain Coping Inventory—Brazilian version

Layz Alves Ferreira Souza, Lilian Varanda Pereira, Louise Amália de Moura, Leidy-Johanna Rueda Díaz, Diná de Almeida Lopes Monteiro da Cruz and José Aparecido Da Silva

PLOS ONE, 2021, vol. 16, issue 2, 1-19

Abstract: Background: The Chronic Pain Coping Inventory (CPCI) has been widely used to measure coping with pain, however, the psychometric properties of the Brazilian CPCI are unknown. Aim: To verify the validity and reliability of the CPCI-Brazilian version. Materials and methods: A sample of 705 outpatients with chronic pain participated in the study. Cronbach’s alpha, corrected item-total correlations, and confirmatory factor analysis were performed, using the method of Diagonally Weighted Least Squares. Results: Construct validity was supported with a factor loading range of 0.36–0.90 (9 factors) corroborating original loads. The final model had adequate fit with items 42 and 54 excluded, D.F = 2174, TLI = 0.96; CFI = 0.96 and RMSEA = 0.051(p = 0.067). Eight of the nine CPCI scales showed satisfactory reliability (Cronbach’s alpha ranged from 0.70 to 0.92). The Relaxation scale obtained a low alpha value (0.53). Conclusion: The CPCI-Brazilian version, after exclusion of items 42 and 54, is valid to measure chronic pain coping in Brazilian adults.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0246294

DOI: 10.1371/journal.pone.0246294

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