Validity and Reliability of the Korean Version of the Couple Satisfaction Index

Suk Sun Kim, Minji Gil, Daeun Kim, Sunhai Kim, Dayeon Heo, Nan Young Moon

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Purpose: The study aimed to translate the Couple Satisfaction Index (CSI 32) into Korean, to evaluate the reliability and validity of CSI 32 and short-form (CSI 16, 4) in the Korean context, and to determine a cut-off score for Korean couples. Methods: Korean Versions of the Couple Satisfaction Index (K-CSI) 32 was translated, back-translated, and reviewed by five bilingual experts. Confirmatory factor analysis (CFA) was conducted with data from a sample of 218 couples (N = 436) to test construct validity. Validity and reliability were evaluated. The receiver’s operating characteristics curve analysis was used to obtain the cut-off score. Results: The construct validities of K-CSI 32, 16, and 4 were verified using one-factor structures. The results of CFA showed a slightly better fit for K-CSI 16 and 4 than for K-CSI 32. Convergent validity was supported by significant positive correlations of K-CSI with Kansas Marital Satisfaction Scale, Dyadic Adjustment Scale, and Family Relationship Assessment Scale. Moreover, the significant differences in K-CSI between normal and depressive group demonstrated known-group validity. Cut-off scores of 105.5 on K-CSI 32, 50.25 on K-CSI 16, and 13.25 on K-CSI 4 were validated to identify distressed couple relationships. Conclusion: For clinical practice, the reliable and valid K-CSI 32 has the potential to measure changes in couple satisfaction after couple therapy or interventions. Applying K-CSI 32 may facilitate research on couple and family relationships in nursing and contribute to the discussion on the role of couple satisfaction in mental health.

Original languageEnglish
Pages (from-to)228-243
Number of pages16
JournalJournal of Korean Academy of Nursing
Issue number2
StatePublished - Apr 2022

Bibliographical note

Funding Information:
This study was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and future Planning (No. 2019R1A2C1087398, 2019R1H1A2039669, & 2022R1A2C2004867).

Publisher Copyright:
© 2022 Korean Society of Nursing Science.


  • Factor Analysis, Statistical
  • Marriage
  • Reliability and Validity
  • Satisfaction
  • Validation Study


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