Examined effects of the age of adult female strangers on the affective behavior of 60 Japanese toddlers. The first study investigated the importance of the age discrepancy between mothers and female strangers aged 23 and over 65. The second study compared toddlers' reactions to mothers, men and women strangers the mother's age, and men and women…

This paper presents two studies of the development of social competencies in infancy. In the first experiment, the central issue investigated was whether facial configuration or height is utilized by infants to respond differentially to children and adults. Five different strangers, a male and a female child, a male and a female adult, and a small…