Previous research on Montessori preschool education is inconsistent and prone to analytic flexibility. In this preregistered study, disadvantaged preschoolers in a French public school were randomly assigned to either conventional or Montessori classrooms, with the latter being adapted to French public education. Adaptations included fewer…

There is ample evidence that children born to poorer families do not succeed at the same rate as children born to the middle class. On average, low-income children lag behind on almost every cognitive, behavioral, emotional, and health measure. These gaps start early--some of the newest research suggests that cognitive gaps are detectable in…

We use observations from the NICHD Study of Early Child Care and, Youth Development (SECCYD) to compare structural and process characteristics of child care centers, family child care homes (nonrelative care in a home setting) and care by relatives for 2-, 3- and 4.5-year-old children. Type of care differences in structural and caregiver…

In this study, representational thought, which involves the child's ability to function in terms of nonpresent reality, is viewed within a cognitive-developmental framework. To see if disadvantaged children would function in the same way as advantaged children on tasks which required representational thought rather than verbalization, children…

This study tests the hypothesis that disadvantaged children learn more from interaction with advantaged children in Head Start classrooms than when grouped solely with other disadvantaged children. Subjects were 32 disadvantaged children who were assigned to two experimental groups of eight each and a control group of 16. Eight advantaged children…