Parenting during the second year: effects of children's age, sex, and attachment classification.

70 2-parent families with 12-month-old infants and 67 2-parent families with 18-month-old toddlers participated in the study. Mothers and fathers participated in separate interviews and filled out questionnaires on family and child behaviors. Mothers and their children participated in the Ainsworth Strange Situation, and the families were observed for a total of 4 hours in their homes. Families were compared on composite measures of family environment variables, parents' perception of their children, and on process variables from home observations. Family differences in environmental stress and marital adjustment showed no effects for attachment classifications, although parents of 12-month-olds reported greater marital adjustment and more pleasure in parenting than parents of 18-months-olds. Both mothers and fathers reported that children classified as resistant were more difficult on several temperament measures. During home observations, 12-month-old children received more positive responses from mothers, and 18-month-old children received more instructions and directions from both parents. Insecure boys (both avoidant and resistant) received the least instructions and directions from both parents, but insecure-avoidant girls received the most instruction from fathers.