Randomized Manipulation of Early Cognitive Experience Impacts Adult Brain Structure.

Does early exposure to cognitive and linguistic stimulation impact brain structure? Or do genetic predispositions account for the co-occurrence of certain neuroanatomical phenotypes and a tendency to engage children in cognitively stimulating activities? Low socioeconomic status infants were randomized to either 5 years of cognitively and linguistically stimulating center-based care or a comparison condition. The intervention resulted in large and statistically significant changes in brain structure measured in midlife, particularly for male individuals. These findings are the first to extend the large literature on cognitive enrichment effects on animal brains to humans, and to demonstrate the effects of uniquely human features such as linguistic stimulation.

Mental Health and Social Development Effects of the Abecedarian Approach.

The Abecedarian Approach is an early intervention and contains a broad-spectrum adult/child curriculum. The Approach has been studied in three longitudinal randomized controlled trials in the USA, starting in 1972 and continuing today. Recent research studies in multiple countries have examined the Abecedarian Approach during the first three years of life.

Correction to: The Abecedarian Approach to Social, Educational, and Health Disparities.

In the section "Ages 39-45 Outcomes," an error was made by providing details from my ongoing collaborative research with colleagues on neuroanatomical effects (Farah et al 2017) and social decision-making (Luo et al 2017).

The Abecedarian Approach to Social, Educational, and Health Disparities.

This paper places the Abecedarian Approach in theoretical and historical context and reviews the results from three randomized controlled trials that have tested an experimental protocol designed to prevent cognitive disabilities and their social consequences. Results affirm that cognitive disabilities can be prevented in early childhood and subsequent academic achievement enhanced via a multipronged comprehensive approach that contains individualized and responsive early childhood education starting in early infancy, coupled with pediatric health care, good nutrition, and family-oriented social services. Additional important findings reveal that the most vulnerable children benefited the most and that cognitive gains were not at the expense of children's socioemotional development or relationship to family.

Adult outcomes as a function of an early childhood educational program: an Abecedarian Project follow-up.

Adult (age 30) educational, economic, and social-emotional adjustment outcomes were investigated for participants in the Abecedarian Project, a randomized controlled trial of early childhood education for children from low-income families. Of the original 111 infants enrolled (98% African American), 101 took part in the age 30 follow-up. Primary indicators of educational level, economic status, and social adjustment were examined as a function of early childhood treatment.

Early educational intervention, early cumulative risk, and the early home environment as predictors of young adult outcomes within a high-risk sample.

The extent to which early educational intervention, early cumulative risk, and the early home environment were associated with young adult outcomes was investigated in a sample of 139 young adults (age 21) from high-risk families enrolled in randomized trials of early intervention. Positive effects of treatment were found for education attainment, attending college, and skilled employment; negative effects of risk were found for education attainment, graduating high school, being employed, and avoiding teen parenthood. The home mediated the effects of risk for graduating high school, but not being employed for teen parenthood.

Injury risk among children of low-income U.S.-born and immigrant mothers.

The number of immigrants in the United States is at an all time high, yet psychologists have largely ignored the domain of immigrant health. This article considers 1 aspect of immigrant health, risk for pediatric injury. A sample of over 5,000 5-year-old children from impoverished families was studied; approximately 13% had immigrant mothers.

Interactions between child behavior patterns and parenting: implications for children's unintentional injury risk.

Objectives: Two factors were considered as predictors of children's risk for unintentional injury: (a) children's temperamentally difficult behavior patterns and (b) parenting. Along with hypotheses to replicate previous univariate effects, it was hypothesized that active, involved parents with sufficient time resources might reduce injury risk among temperamentally at-risk children.

Methods: Study 1 used a retrospective design with a diverse sample of over 10,000 5-year-olds.

Early Intervention and Mediating Processes in Cognitive Performance of Children of Low-Income African American Families.

This longitudinal study of 161 African American children from low-income families examined multiple influences, including early childhood interventions and characteristics of the child and family, on longitudinal patterns of children's cognitive performance measured between 6 months and 8 years of age. Results indicate that more optimal patterns of cognitive development were associated with intensive early educational child care, responsive stimulating care at home, and higher maternal IQ. In accordance with a general systems model, analyses also suggested that child care experiences were related to better cognitive performance in part through enhancing the infant's responsiveness to his or her environment.

Power Calculations for General Linear Multivariate Models Including Repeated Measures Applications.

Recently developed methods for power analysis expand the options available for study design. We demonstrate how easily the methods can be applied by (1) reviewing their formulation and (2) describing their application in the preparation of a particular grant proposal. The focus is a complex but ubiquitous setting: repeated measures in a longitudinal study.