Abstract
Validation of the MacHale Co-parenting Scale (1997) was examined in a sample of 192 Persian-speaking parents who had children in primary school. Translation of this scale was performed using the forward–backward method. To assess reliability, internal consistency was used after translating the items into Persian. Face validity, content validity and structural validity were also applied to ensure tool validity. The results indicated that Ballit’s sphericity test yielded a value of 1153.138 at a significance level of p < .05. Using varimax rotation, three factors (Family Integrity, Consistency and Conflict) were identified with eigenvalues greater than 1 and factor loadings higher than 0.5. The total factors explained 58.18 per cent of the variance in the data. Additionally, the Cronbach’s alpha coefficient for the entire questionnaire was 0.84. The Persian version of the co-parenting questionnaire has satisfactory psychometric properties with acceptable reliability and validity for measuring joint parenting among Iranian parents in terms of family integrity, consistency and conflict dimensions.