title: Correlates of mastery-related behavior: a short-term longitudinal study of infants in their second year.
abstract: The present study examined correlates of mastery-related behavior across the infant's second year of life. Maternal control style was quantified on a control to support-of-autonomy continuum, infant-mother attachment was assessed in the Strange Situation, and mastery-related behavior was observed in a toy play session at 12 and 20 months. Infants whose mothers were supportive of their autonomy displayed greater task-oriented persistence and competence during play than did infants of more controlling mothers; securely attached and avoidant infants tended to exhibit greater persistence at tasks than anxious-ambivalent babies, and ambivalent babies were the most negative in affect.
mesh_terms: D000339:Affect; D000367:Age Factors; D002652:Child Behavior; D002668:Child Rearing; D005260:Female; D006801:Humans; D007223:Infant; D008137:Longitudinal Studies; D008297:Male; D009034:Mother-Child Relations; D009042:Motivation; D009769:Object Attachment; D010988:Play and Playthings