This study used longitudinal productivity criteria to establish the phonetic skill of 20 children (followed from 9 to 16 months). The number of specific consonants produced consistently across the months predicted referential lexical use at 16 months. Prior use of at least two supraglottal consonants characterized the children achieving…

The predictive relation between neonatal behavior and temperament at 24 months was examined for 67 infants selected from the full socioeconomic status (SES) distribution. Initial ratings were made when the infants were one to four days old. Irritable neonates were rated as more upset, less attentive to stimuli, and less responsive to the staff at…

Free play and elicited language samples were obtained monthly for 10 to 12 months from five late talking children. Analysis indicated that three of the children resolved their late onset of speech by 33 to 35 months of age. Both quantitative factors (e.g., limited phonetic inventory) and qualitative factors (e.g., atypical error patterns) were…

This study examined the relationship among language proficiency, behavior problems, and other areas of development in 36 children (ages 36 to 40 months). A strong association was found between deficiencies in both expressive and receptive language and behavioral difficulties. Specifically, deficits in expressive language at age 2 were more…

This longitudinal study identified hard-to-manage older toddlers and younger preschoolers, assessed the developmental course and prognostic significance of their difficult behavior, and delineated family factors possibly associated with early and persistent problems. Obtained from parents, teachers, and observers, cross-situational and…

With over half the nation's infants and toddlers in regular, non-parental child care, the quality of that care is a priority concern for policymakers. Many studies show that high-quality child care supports the positive social, emotional, and cognitive development of young children. The research summarized in this policy brief identifies factors…

Sixty-two socioculturally homogeneous, low-income black mother/child pairs were tested and observed when the infants were 2, 6, 12, 18, 24, 30, and 36 months of age to determine the relationship between variability in parenting attitudes, skills, and behaviors and consequent variability in children's intellectual development. As expected, the…