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…

Research Findings: It is clear that disasters negatively affect both adults and children. Yet there is little research examining the mechanisms whereby some people are negatively affected by disasters whereas others are resilient to these negative effects. Family functioning and child characteristics might be factors that influence the impact of…

Children from different backgrounds have disparate access to cultural capital, which may influence their academic success. The purpose of this study was to examine the links between family background, home literacy experiences, and emergent literacy skills among preschoolers enrolled in Head Start programmes. The background characteristics studied…

Narrative skills that are important for preschoolers include retelling stories, telling personal stories, and answering questions about stories. Narrative abilities form the foundation of reading comprehension. The purpose of this study was to investigate the effect of an individually delivered language intervention on the narrative skills of…

A study was conducted in 26 Head Start classrooms with 264 children to compare the effect of a read aloud plus extension activities intervention over a control group to the effect of a read aloud only intervention over a control group on preschool children's vocabulary. Children were assessed before and after the intervention on target vocabulary…

The purpose of the study was to examine the psychometric properties of the "Preschool Language Scale-4" (PLS-4) with a sample of English-speaking Hispanic and European American children who attended Head Start programs. Participants were 440 children between the ages of 3 and 5 years (52% male; 86% Hispanic and 14% European American).…

This article reports the results of a preliminary study that applied a randomized posttest-only design to evaluate the effectiveness of a literacy curriculum that incorporated explicit opportunities for Spanish-speaking Head Start preschool children (N = 76) to develop writing abilities in English. The study also addressed English language…

Some early childhood variables are examined to evaluate their predictive validity. The selection of children needing early childhood Title I services is complicated by the lack of criteria for defining who is educationally disadvantaged and the special problems of early childhood testing and measurement. The study used re-analysis of longitudinal…

Associations between school district poverty and achievement and Chapter 1 programs are studied. The allocation formula in the legislation states that funding is to be distributed in direct proportion to poverty and regional cost. Dependent variables include Chapter 1 funding, the number of district participants in compensatory education…

School-family partnerships (SFPs) have been the focus of research, policy, and practice efforts for several years. Increasing the interest in SFPs has been the finding that when schools and families cooperate closely, children benefit. The more supportive links there are between settings, the more potential there is for healthy development. Such…