Early Mother-Child Interaction Flexibility Predicts Adolescent Psychological Adjustment.

Although greater mother-child interaction flexibility has been linked with overall better adjustment within early childhood and adolescence, whether this link persists across the two developmental periods remains unknown. This longitudinal study examined mother-toddler flexibility in affective and behavioral exchanges as predictors of adolescents' externalizing and internalizing symptoms. Sample included 128 families with their 33-month-old toddlers (52% female), of whom 67 returned in adolescence (M age = 13.25 years, SD = 0.59). Greater affective flexibility during play and behavioral flexibility during snack predicted fewer parent-reported externalizing (but not internalizing) symptoms ten years later, controlling for the positivity-negativity of mother-toddler interactions, early-childhood adjustment, and mother-adolescent flexibility. The findings highlight the unique, prospective role of early-life caregiving flexibility in mitigating adolescents' behavioral problems.