The realist review/synthesis has become an increasingly prominent methodological approach to evidence synthesis that can inform policy and practice. While there are publication standards and guidelines for the conduct of realist reviews, published reviews often provide minimal detail regarding how they have conducted some methodological steps.…

Educational researchers have concluded that there are threshold concepts in a large number of disciplines. Yet, these researchers have not paid enough attention to the objection to the theory. It is beset with severe definitional and empirical problems. I will portray definitions of 'threshold concepts' provided by Land and Meyer, the founding…

Research on literacy has become universal and is essential for researchers of various disciplines, educators, and psychologists. For this article, we examined the most important methodological challenges that arise when conducting literacy research across languages, some of which have long been acknowledged in the relevant literature.…

This chapter examines how studies focused on the same topic--disproportionality in special education--can generate vastly different conclusions about its sources and causes. By analyzing existing disagreements in the field, we explore essential questions about what constitutes high-quality and relevant evidence when seeking to understand how,…

The evidence base for educational interventions for deaf students has been, and continues to be, called into question due to a lack of "gold standard" research available to support it. Yet the paucity of research in deaf education is not only in the volume of research that meets rigorous standards but also in its lack of attention to and…

Structural equation models play an important role in the social sciences. Consequently, there is an increasing use of meta-analytic methods to combine evidence from studies that estimate the parameters of structural equation models. Two approaches are used to combine evidence from structural equation models: A direct approach that combines…

There is synergy between the investigative practices of police detectives and social scientists, including work-based researchers. They both develop lines-of-inquiry and draw on multiple sources of evidence in order to make inferences about people, trends and phenomena. However, the principles associated with lines-of-inquiry and sources of…

Background: Observation Studies, Unmeasured Confounding, and Sensitivity Analysis: An important part of educational research is identifying important, potentially causal, factors that influence children's learning from observational studies. However, it is well-known that discovering such factors from observational studies can be biased due to…

We welcome Professor Pearl's comment on our original article, Dawid et al. Our focus there on the distinction between the "Effects of Causes" (EoC) and the "Causes of Effects" (CoE) concerned two fundamental problems, one a theoretical challenge in statistics and the other a practical challenge for trial courts. In this…

The United States considers educating all students to a threshold of adequate outcomes to be a central goal of educational justice. The No Child Left Behind Act introduced evidence-based policy and accountability protocols to ensure that all students receive an education that enables them to meet adequacy standards. Unfortunately, evidence-based…

With the push for evidence-informed policy and practice, schools and policy makers are now increasingly encouraged and supported to use and enagage with research evidence. This means that consumers of research will now need to be discerning in judging the quality of research evidence that will inform their decisions. This paper evaluates the…

Realist review has increased in popularity as a methodology for complex intervention assessment. Our experience suggests that the process of designing a realist review requires its customization to areas under investigation. To elaborate on this idea, we first describe the logic underpinning realist review and then present critical reflections on…

Educational technology products offer potentially effective means of supporting teaching and learning in K-12 classrooms. But for any given instructional need, there are likely to be numerous product options available for purchasing. What can school districts do to help ensure that good selections are made? In a recent, comprehensive study of…

Stuart McLean refers in this commentary to Jeffrey Huffman's article "Reading Rate Gains during a One-Semester Extensive Reading Course" (v26 n2 p17-33 Oct 2014) [See: EJ1044344], in which Huffman reports that extensive reading (ER) was an effective way to provide large amounts of comprehensible input to foreign language learners, but…

This paper explores how social justice orientated education research might engage with emerging ideas and approaches from the new biological sciences, and suggests a biosocial future for empirical education research that connects molecular biology--epigenetics, nutrigenomics and neuroscience--with sociology of education. In beginning to consider…