The cry sounds of 12 well-nourished and 12 malnourished male infants were compared using behavioral and acoustic measures. (BRT)

Investigates factors associated with outcomes in attachment relationships between 30 well-educated, full-time working mothers and their 18-month-old firstborn sons. Suggests maternal employment effects on mother-son attachment are mediated primarily by a woman's affective state, which becomes manifested in her style of caregiving and child-care…

This study addresses two specific questions: (1) can changes in infant behavior and maternal attitudes be observed as a function of the child's sex, and (2) if so, at what age do the sex differences become observable? (Author/AM)

This followup study examines the differences between preschool girls and boys in their responses to infants. Thirty-eight day care children (boys and girls age 3 1/2 to 5 1/2 years were observed during individual play in a small play area with a male or female toddler mature enough to interact with the preschoolers socially. The children's…