Toward the goal of more rapid knowledge accumulation via better meta-analyses, this article explores statistical approaches intended to increase the precision and comparability of effect sizes from education research. The featured estimate of the proposed approach is a standardized mean difference effect size whose numerator is a mean difference…

Calls for improving transparency across the social science are increasing. One strategy that is gaining momentum in the quest to increase transparency is the practice of preregistering a study and analysis plan prior to conducting a study. In this article, we examine the potential of preregistration as a strategy for increasing transparency in…

In the current article, we consider the influential position of the Programme for International Student Assessment (PISA) and discuss several methodological areas that demonstrate the need for caution when using and interpreting PISA results. We motivate our argument by briefly describing the program's increased influence in educational policy…

Outcome-reporting bias occurs when primary studies do not include information about all outcomes measured in a study. When studies omit findings on important measures, efforts to synthesize the research using systematic review techniques will be biased and interpretations of individual studies will be incomplete. Outcome-reporting bias has been…

This review focuses on the inclusion criteria for the selection of studies in the National Early Literacy Panel report. It argues that the interpretation of early literacy is overly narrow and ignores the important role of background knowledge and conceptual development. To make this argument, it examines studies of comprehension in content areas…

The authors discuss the 19 individual studies included in chapter 4 (shared story reading interventions) of the report of the National Early Literacy Panel (NELP) and offer more nuanced conclusions than the report's authors do. They also emphasize the need for more comprehensive approaches to shared story reading in preschool than those found in…

Many of the methodological criticisms of the National Early Literacy Panel (NELP) report presented in this special issue of "Educational Researcher" are not specific to the NELP report but are in fact broad criticisms of much of the quantitative research on early literacy. This rejoinder demonstrates that these criticisms are off target and are…

This article summarizes "Developing Early Literacy: Report of the National Early Literacy Panel," which was published in 2008.That report provides an extensive meta-analysis of approximately 300 studies showing which early literacy measures correlate with later literacy achievement. It also provides a series of meta-analyses of a comprehensive…

The authors examine the implications and limitations of the National Early Literacy Panel report on the early care of young children who are dual-language learners (DLLs).They examine the relevance of the report for DLLs, particularly the practice in this and other national synthesis reports of extrapolating implications for the education of young…

The authors argue that the findings from the National Early Literacy Panel (NELP; 2008) report related to parent involvement and family literacy programs require further clarification. Based on an ideological view of literacy, the authors offer three recommendations that would provide a more accurate representation of parent involvement and family…

Although the National Early Literacy Panel report provides an important distillation of research, the manner in which the data are reported underrepresents the importance of language. Unlike other predictors with moderate associations with later reading, language exerts pervasive and indirect influences that are not described by the effect sizes…

This article discusses the potential positive and problematic influences of the National Early Literacy Panel (NELP; 2008) report on prekindergarten and kindergarten classroom instructional practice. The authors support the instructional importance of the majority of the foundational skills identified in the NELP report as having "clear and…

The authors consider how the National Early Literacy Panel's decision to focus on identifying precursors to "conventional" literacy skills shaped the questions asked, conclusions drawn, and take-home message of the panel's 2008 report. They suggest that this approach may keep the field of literacy research from seeing and valuing other kinds of…

The authors examine the National Early Literacy Panel (NELP; 2008) report from two complementary vantage points: (a) the historical tradition of research syntheses in reading research, beginning with Chall and extending through the NELP report, and (b) other recent attempts to examine or synthesize early reading development. While acknowledging…

The National Early Literacy Panel (2008) report identified early predictors of reading achievement as good targets for instruction, and many of those skills are related to decoding. In this article, the authors suggest that the developmental trajectories of rapidly developing skills pose problems for traditional statistical analyses. Rapidly…