| Women are at increased risk of trauma exposure and of experiencing prolonged PTS. This may negatively impact mother-infant interaction quality and infant temperament. More research is needed to examine interactive mechanisms of developmental risk and to identify which predictors were most robustly related to infant temperament outcomes. The present study aimed to address this gap by examining how maternal sensitivity explained relations between maternal trauma and infant temperament. Mediation via maternal sensitivity was not supported in any of the primary analyses. Greater maternal trauma exposure was found to predict greater infant regulation behavior; however, results were not statistically significant after correcting for type 1 error inflation. Future research models should include additional trauma variables (e.g., recency, type, revictimization/polyvictimization), along with maternal insensitivity/ambiguous responding and closer analysis of the IBQ-R subscales. Follow-up analyses may determine whether null findings were due to construct definitions/measures or to sample limitations. Keywords: maternal, prenatal, infant, trauma, temperament, development, sensitivity |