Examines the relations of levels of task engagement to investigation and visual attention in data from 30-month-old children. Finds significant correlations between task and other mastery behavior. Postulates task engagement as valid assessment of mastery behavior. Suggests the motivation for young children's play is acquisition and mastery of…

The ability of three-year-old children to deceive was examined in order to determine whether they were able to hide their emotional expression intentionally. Results indicated that very young children have begun the process of learning how to mask their emotional expressions and support the role of socialization in this process. (RH)

Studies 12- to 24-month-olds in a series of videotaped tasks assessing single object manipulation, relational play, pretend play, distractibility and persistence. Develops eight relatively subtle measures of three aspects of individual differences in infant behavior: developmental level, attention span, and exploratory diversity. (Author/NH)

Spatial matching--the ability to distribute search effort in accord with the distribution of hidden resources--was studied in 18- to 54-month-old children. The principal development was the appropriate use of win-shift response. (Author/RWB)

Tested the hypothesis that understanding of the pretend-real distinction develops earlier than understanding of the theoretically related apparent-real distinction. Found 3-year-old children consistently performed better on pretend-real tasks than on apparent-real tasks, even when the tasks were identical except for the distinction tested. (SKC)

Temperament is examined from a longitudinal, within-individual perspective in order to investigate short-term change and patterns of temperament changes. For 100 consectutive days five mothers completed a temperament survey, reporting on their own and their two-year-old children's behavior. Patterns of change were identified for both mothers and…

Introduces the Social Relations Model as a new approach for understanding reciprocity during parent-child and sibling play. (PCB)

Based on observations of children ages 21-25 months in play groups, investigates reactions of both peers and teachers to behaviors that could be identified and coded as male, female, or neutral. (Author/NH)

A short-term longitudinal study of the peer-related social interactions of 111 developmentally delayed toddlers and preschool children was carried out. Results suggested the existence of unusually marked deficits in peer interactions. Possible contributing factors were discussed. (Author/RH)

Examines speech samples from six children aged 2 years to 2 years, 5 months, with Mean Lengths of Utterance ranging from 2.93 to 4.14, were examined for evidence of six syntactic categories: determiner, adjective, noun, noun phrase, preposition, and prepositional phrase. (HOD)

Mothers of about 100 toddlers completed the Toddler Temperament Scale when their children were 12, 18, and 24 months old. Other data sets were available for: (a) factors representing laboratory observations; (b) measures of mothers' temperament by mothers and by social workers; and (c) measures of the home and family environment by social workers.…

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…

Examines the childrearing correlates of impulse control in 18 mothers and their 14-month-old toddlers. Shows that mothers who relied on physical punishment had infants who were more likely to ignore maternal prohibitions, to manipulate breakable objects, and to show low levels of nonverbal competence seven months later. (HOD)

Examines associations among contemporaneous measures of marital quality, parenting attitudes and behavior, and toddler development in two-parent families. Seventy-five families with one 20-month-old child served as subjects. Results generally indicated that good marital quality was associated with optimal toddler functioning and sensitive…

Assesses the interrelations among the functional properties of maternal speech, the structural properties of maternal speech, and child language growth for a period of six months for 22 two-year-old children and their mothers. (HOD)