Polish Adaptation of the Coparenting Relationship Scale A Self-Report Measure Used to Assess Subjective Quality of the Relationship Between Parents

The Coparenting Relationship Scale (CRS) is a 35-item self-report measure used to assess subjective evaluation of the relationship between parents. Developed and applied in the United States, it was translated and adapted in other countries. The article presents a Polish adaptation of the CRS. The study included 802 respondents (514 mothers, 288 fathers). In comparison to the original 7-factor structure of the original CRS, in our case, we excluded the division of labor factor and achieved satisfactory goodness-of-fit criteria upon the inclusion of the method factor with reverse-worded (RW) items. We also attempted to test measurement invariance by gender and across two cultural contexts: comparing with the USA and Switzerland. In all cases, at least scalar invariance was achieved, allowing for comparisons between the mentioned groups. We also verified construct validity, which allowed us to demonstrate convergent validity when the CRS was correlated with the Enrich Marital Satisfaction Scale and Parental Distress Scale, as well as discriminant validity when the CRS was correlated with the Lie Scale from the Eysenck Personality Questionnaire-Revised. The results of statistical analyses show that the Polish CRS is a valid and reliable measure of the coparenting relationship.