This study examines the relationship between mother-infant behavior and the infant's performance on perceptual-cognitive tasks as a function of the infant's sex. A total of 189 12-week-old infants and their mothers were observed in their homes during 2 hours of infant awake time. In addition, the Mental Development Index (MDI) of the Bayley Scales…

This document contains six papers prepared between 1969 and 1975 by the Protein-Calorie Advisory Group (PAG) of the United Nations on topics related to the feeding of preschool children in underdeveloped countries. Among the topics covered: (1) nutrition in utero; (2) nutritional aspects of breastfeeding; (3) infant mortality rates as indicators…

This study examines the degree to which young children are influenced by the familiarity of an adult participant in their pretend play with toys which vary in resemblance to highly prototypical objects (e.g., cup-like cups or doll-like dolls). A group of 29 children, mean age 21 months, was divided into two experimental groups balanced by sex; 15…

This paper presents a review of the literature concerning the infant Apgar scoring system and its relationship to later mental and motor development. Since 1952, the Apgar scoring system has provided a viable means of assessing the infant's immediate postnatal condition. Researchers have demonstrated that while the 1-minute Apgar score is a useful…

Distributed by the U.S. Departments of Agriculture, Education, and Health and Human Services, this Spanish-language pamphlet provides parents with information and advice about their infants in the seventh month of life. Following a brief description of developmental characteristics at this age, the pamphlet offers advice on a variety of topics,…

The Mental Development Scales: Birth to Three Years are instruments designed to assess developmental levels of young children within a setting familiar to the child. They (1) provide a greater understanding of child behavior and development, (2) serve as a basis for planning an individualized curriculum for each child, and (3) furnish the means…

This paper investigates the evidence for adult-infant ratios in day care centers, finding that current evidence is based largely on the premise that a low number of infants per adult should result in greater interaction between the adults and the infants, and, thereby, better infant care. Support for this premise is derived from three main…

Distributed by the U.S. Departments of Agriculture, Education, and Health and Human Services, this Spanish-language pamphlet provides parents with information and advice about their infants in the twelfth month of life. Following a brief description of developmental characteristics at this age, the pamphlet offers advice on a variety of topics,…

Distributed by the U.S. Departments of Agriculture, Education, and Health and Human Services, this pamphlet provides parents with information and advice about their infants in the fourth month of life. Following a brief description of developmental characteristics at this age, the pamphlet offers information on topics including feeding, early…

Distributed by the U.S. Departments of Agriculture, Education, and Health and Human Services, this pamphlet provides parents with information and advice about their infants in the fifth month of life. Following a brief description of developmental characteristics at this age, the pamphlet offers information on topics including infant medicines,…

Examined the relationship of newborns' 1-minute Apgar scores to their 8-month Bayley mental and motor scores and to 8-month classifications of their development as normal, suspect, or abnormal. Also investigated relationships between Apgar scores and race, longevity, and birth weight. (JMB)

The purpose of this research was to examine 18- to 30-month-old children's use of scripts for representing common events. A script is defined as a model that specifies the roles and props appropriate to an event and identifies a sequence of acts for achieving the goal defined by the event. Two aspects of script knowledge were investigated: (1) the…

Scores on a mental development scale were correlated for 8-month-old twins and other sibling pairs. Greater correlations were found between twins than sibling pairs. (ST)

Investigated the possibility that evidence of frequency discrimination might be found when the experimental procedures involved the conjugate reinforcement of nonnutritive sucking. (SDH)

Paper presented at the Merrill-Palmer Institute on Research and Training of Infant Development (Detroit, Mich., Feb. 15-17, 1968).