Researchers have become increasingly interested in programs' main and interaction effects of two variables (A and B, e.g., two treatment variables or one treatment variable and one moderator) on outcomes. A challenge for estimating main and interaction effects is to eliminate selection bias across A-by-B groups. I introduce Rubin's causal model to…

Much of child care research has focused on the effects of the quality of care in early childhood settings on children's school readiness skills. Although researchers increased the statistical rigor of their approaches over the past 15 years, researchers' ability to draw causal inferences has been limited because the studies are based on…

Early literacy skill development at the preschool level is critical for later success in learning to read and other reading-related activities. Professional development (PD), specifically coaching via performance feedback delivered through email, may provide a viable alternative to other types of trainings (e.g. workshops) that are often…

Observed child care quality and parent perceptions of child care quality received by children in poor (below Federal Poverty Line, FPL), low-income (between FPL and 200% of FPL), and non-low-income families were examined. Observations were completed in 359 center- and home-based child care programs in four Midwestern states and surveys were…

There is a mounting body of research demonstrating the impact of early learning on lifelong success. The quality of early child care is the most consistent predictor of young children's behavior, according to the National Institute of Child Health and Human Development Early Childcare Research Network. Children who receive high-quality child care…

The purpose of this study is to examine the role of center-based care and children's school readiness in predicting their first and third grade reading and mathematics achievement. Predictions derived from an opportunity-propensity theoretical framework applied to data from the Early Childhood Longitudinal Study-Kindergarten Class of 1998-99. …

Research Findings: Previous research has documented conflicting results on the relationship between program quality and the percentage of children receiving subsidized child care (subsidy density) in early childhood centers. This research examined the relationship between subsidy density and the quality of infant and preschool classrooms in child…

Using data from a survey on cognitive proficiency levels of first graders in Switzerland (N = 1.830), this study analyzes (1) who has access to institutional childcare, (2) whether institutional childcare affects cognitive skills of children who differ in terms of socioeconomic status, home literacy, native country, and home language, and (3) how…

Data from the NICHD Study of Early Child Care were examined to explore five propositions that would support a causal relationship between child care quality and child outcomes at age 4.5 years. Three propositions were supported, particularly in the cognitive domain. Associations between quality and outcomes remained even with child and family…

This book contains a compilation of papers presented at the International Psychological Applications Conference and Trends (InPACT) 2018, organized by the World Institute for Advanced Research and Science (W.I.A.R.S.). Modern psychology offers a large range of scientific fields where it can be applied. The goal of understanding individuals and…