LAUSR

Abstract The parents’ capacity to reflect upon the psychological processes in their child, termed parental reflective functioning (PRF) can be impaired by parental mental health problems. The present study aimed to investigate the factor structure of an infant version of the Parental Reflective Functioning Questionnaire (PRFQ‐I) in a low‐risk sample of 259 Danish fathers of 1–11‐month‐old infants to investigate measurement invariance of the PRFQ‐I between fathers and mothers; and to examine the association between PRF and paternal depressive symptoms, psychological distress, and parenting stress. Confirmatory factor analysis supported a three‐factor model of the PRFQ‐I. Multi‐group factor analysis indicated partial measurement invariance. Multiple linear regressions showed that paternal depressive symptoms were not associated with PRF. There was an interaction effect of paternal depressive symptoms and general psychological distress on paternal interest and curiosity in their infant's mental state and certainty of infant mental state. Increased parenting stress was associated with impaired PRF on all three subscales of the PRFQ‐I. These results provide further evidence for a multidimensional, brief assessment of paternal reflective skills and insight into how variability in paternal psychological functioning relates to impaired PRF in the postpartum period.