The "invisible hand" is a metaphor that refers to teachers' impact on the classroom peer ecology. Although teachers have the capacity to organize the classroom environment and activities in ways that contribute to students' social experiences, their contributions are often overlooked in research on students' peer relations and the…

Given the widespread use of non-experimental (NE) methods for assessing program impacts, there is a strong need to know whether NE approaches yield causally valid results in field settings. In within-study comparison (WSC) designs, the researcher compares treatment effects from an NE with those obtained from a randomized experiment that shares the…

Although scientific research has clearly shown that preschool programs prepare children for kindergarten, increasing attention has been drawn to whether these early investments in children's education have long-term impacts. Here, we argue that long-term impacts of preschool cannot be viewed in isolation from children's subsequent experiences and,…

In 1995 scientists, educators, and policymakers were startled by the claim that low-income children in the United States heard 30 million fewer words than their middle-income peers. Because language is the single best predictor of later academic readiness, this gap can have consequences for children in school and beyond. Language researchers know…

In this chapter, we review two approaches for understanding these national differences in math abilities. The first approach attempts to link cross-national differences in educational input to cross-national differences in test scores. A tacit assumption of this approach is that children's performance on tests of mathematics is a direct effect of…

For several decades, lifelong learning has been discussed both in terms of its ability to provide both individual and national economic benefits. However, while the importance of lifelong learning, particularly in lieu of occupational changes, has been emphasized, the creation or adaptation of funding methods for lifelong learning specifically in…

"Mentoring through the Transitions: Voices on the Verge" highlights the individuals, programs, and institutions succeeding in assisting STEM students through critical junctures such as high school to college, community college to four-year institution, and four-year institution to graduate school and beyond. It features the authentic…

This book is a testament to the increasing role and importance of multiple source use in everyday and academic literacy activities in the 21st century. How should we introduce the topic of multiple sources here? For most readers, we need not, because this chapter is not their first literacy stop in the volume, so the topic has been adequately…

Information is at the heart of lifelong learning, effective citizenship and good decision making. Yet information can come from a variety of sources with different degrees of trustworthiness, accuracy and depth (Metzger, 2007). The information age has resulted in an explosion of knowledge that can be readily accessed by anyone who uses the…

Background and purpose: Studies of education and learning that were described as experiments have been carried out in the USA by educational psychologists since about 1900. In this paper, we discuss the history of randomised trials in education in the USA in terms of five historical periods. In each period, the use of randomised trials was…

This paper examines and critiques the accountability movement, high-stakes testing, and their relationship to the achievement gap. Analyzing the issues in the context of Texas, the paper discusses dropout rates that were incorrectly identified and reported, the role of courts and specific court cases in high-stakes testing, ethical considerations,…

Few studies examine employee responses to layoff-induced unemployment risk; none that we know of quantify the impact of job "insecurity" on individual employee productivity. Using data from the Los Angeles Unified School District and Washington State during the Great Recession, we provide the first evidence about the impact of the layoff…

Interactive Strategy Training for Active Reading and Thinking en Español, or iSTART-E, is a new intelligent tutoring system (ITS) that provides reading comprehension strategy training for Spanish speakers. This paper reports on studies evaluating the efficacy of iSTART-E in real-world classrooms in two different Spanish-speaking countries. In…

Could we combat poverty by reducing the number of unintended and nonmarital births? This article proposes a federal policy that would provide all women with information about, and free access to, a range of contraceptive services, including long-acting reversible contraceptives; reviews what it is that we do and do not know; discusses several…

In this chapter, we describe several intelligent tutoring systems (ITSs) designed to support student literacy through reading comprehension and writing instruction and practice. Although adaptive instruction can be a powerful tool in the literacy domain, developing these technologies poses significant challenges. For example, evaluating the…