To illuminate how within-family differences in achievement may emerge, this study examined sibling experiences in middle childhood as predictors of sibling differences in college graduation. First- and second-borns from 152 families reported on their experiences with siblings and parents at ages 11.80 (SD = 0.56) and 9.22 (SD = 0.90),…

The IQ performance of children who experienced the birth of a younger sibling was found to drop 10 points during the next two years for singleton children and 5.8 points for last-born children from families of comparable size. The study controlled for sex, family size, age at assessment, and IQ before the birth of the sibling. (Author/RH)

Examines (1) whether and when the development of preterm children of very low birth weight would begin to approximate that of demographically matched full-term children, and (2) whether test scores corrected for degree of prematurity or those based on chronological age would be the more accurate predictors of subsequent development. (RH)

Regardless of birthweight, ventilated infants received the lowest ratings for overall performance on the Infant Behavior Record. Ventilated newborns of very low birthweight were more likely to receive ratings characterizing an overly active infant with a short attention span, and never-ventilated infants of very low birthweight were most likely to…

Compared language development of 16 firstborn and 16 secondborn children at 21 months to investigate whether secondborn children benefit from overheard conversations between caregivers and older siblings. Found that secondborn children were more advanced that firstborn in pronoun production, while not differing general language development,…

Compared low-birthweight infants who participated in an intervention involving educational and family support services during the first three years of life with low-birthweight infants who received pediatric follow-up. Intervention group infants scored higher on cognitive tests and lower on measures of behavior problems at 24 and 36 months than…

Examines the relation between maternal social networks and mother-infant interactions in 34 mother-preterm and 20 mother-full term dyads with infants aged six months. Results demonstrate that, although full-term infant birth is typically positive, it is less clear that preterm birth is positive, with the result that network members are unsure of…

When differences in level of motivation were controlled, all of the previously found differences between firstborn and later born disappeared. (Authors)

Investigated birth-order differences in children's early vocabulary development. Compared the composition and age of acquisition of the first 50 and 100 words of 9 firstborns and their younger siblings, using a longitudinal maternal diary methodology. A small but significant birth-order effect was found for the age at which the 50-word milestone…

Experimental group mothers reported significantly greater self-confidence and satisfaction with mothering and more favorable perception of infant temperament than did control group mothers. Differences between children on cognitive scores became significant at 36 and 48 months of age, when the experimental group caught up with normal children. (RH)

Examined correlates of parents' knowledge about their children's daily experiences. Found between- and within-family differences as a function of mothers' work involvement, sibling composition, and children's and adults' personal qualities. Fathers knew more when mothers worked longer hours. Parents knew more about younger than older offspring.…

Compared dyads of mothers and low-birthweight infants who participated in a comprehensive early intervention program during the infant's first three years with dyads who received pediatric follow-up. Intervention group mothers had higher ratings than follow-up mothers on quality of assistance. Intervention children had higher ratings on…

This longitudinal study tested the contribution of age and marital status at first birth to depressive symptomatology in early adulthood. Findings indicated that unmarried teenage childbearers displayed higher levels of depressive symptoms than women who first gave birth as married adults. The psychological health of married teenage mothers in…

Compared outcomes of middle-school-age children born at very low (less than 750-g) or low birthweights (750 to 1,499-g) and full-term. Found that the very-low-weight group fared less well at school age than the low weight and term groups on cognitive functioning, achievement, behavior, and academic performance. Those without neurosensory disorders…