Re-parameterized regression models may enable tests of crucial theoretical predictions involving interactive effects of predictors that cannot be tested directly using standard approaches. First, we present a re-parameterized regression model for the Linear x Linear interaction of 2 quantitative predictors that yields point and interval estimates…

This paper reports on the design, methodology, and results of a study of quality in 326 classrooms in 239 Canadian child care centers. This study, the largest and most extensive ever undertaken in Canada, used the Caregiver Interaction Scale (CIS) to rate the adult-child interactions in the classrooms and the Infant-Toddler Environment Rating…

This study of 231 regulated family child care providers proposed a theoretical model to explore the effects on quality of: (1) provider level of general education; (2) provider degree of intentionality; (3) provider training and experience in family child care; (4) provider use of support services; and (5) provider work environment. Hierarchical…

The issue of child care is still widely debated, with some scholars arguing that children fare best in parental care, whereas others suggest center care may enhance children's development. Using the Early Childhood Longitudinal Study--Kindergarten Cohort of 1998 to 1999, the author demonstrates how the use of cross-sectional versus longitudinal…