Researchers across many fields have called for greater attention to heterogeneity of treatment effects--shifting focus from the average effect to variation in effects between different treatments, studies, or subgroups. True heterogeneity is important, but many reports of heterogeneity have proved to be false, non-replicable, or exaggerated. In…

Aptitude-treatment interaction (ATI) research is of both theoretical and practical interest to second language (L2) learning, since it provides insights into the processes linking learner-internal individual difference factors and learner-external contextual variables including instructional approach--variables that jointly determine L2 outcomes.…

Language learning strategies (LLSs) are believed to be influenced by individual differences as well as environmental and contextual factors. Therefore, the effective use of LLSs is determined by various factors, including both learning and learner variables. This dynamic and complex nature of LLSs renders it appropriate to use a qualitative…

This study investigated whether individual differences in working memory (WM) moderate effects of 2 variations of intervention designed to improve at-risk 4th graders' fraction knowledge. We also examined the effects of each intervention condition against a business-as-usual control group and assessed whether children's measurement interpretation…

This study investigated whether individual differences in working memory (WM) moderate effects of 2 variations of intervention designed to improve at-risk 4th graders' fraction knowledge. We also examined the effects of each intervention condition against a business-as-usual control group and assessed whether children's measurement interpretation…

The Association for Authentic, Experiential, and Evidence-Based Learning (AAEEBL) annual ePortfolio survey focuses on understanding ePortfolio practitioners' teaching beliefs and practices. The action research reported here extends that survey research to a population of emerging educators (i.e., graduate students in education). In addition to…

The effect of two training procedures on the development of reading speed in poor readers is examined. One training concentrates on the words the children read correctly ("successes"), the other on the words they read incorrectly ("failures"). Children were either informed or not informed about the training focus. A randomized controlled trial was…

The purpose of the study was to investigate the metacognitive abilities of students with LD as they engage in math problem solving and to determine processing differences between these students and their low- and average-achieving peers (n = 73). Students thought out loud as they solved three math problems of increasing difficulty. Protocols were…

This paper presents research that examines the links between practitioners' understanding of play and its relationship to learning, their pedagogic interactions with children and children's own perceptions of their play. Previous research has shown a mismatch between practitioners' understanding of play and their practice. This research identifies…

A key promise of narrative-centered learning environments is the ability to make learning engaging. However, there is concern that learning and engagement may be at odds in these game-based learning environments. This view suggests that, on the one hand, students interacting with a game-based learning environment may be engaged but unlikely to…

The article focuses on the impact of internationalization on university lecturers' practice. Based on interviews with 36 employees from Danish universities, we discuss what internationalization means for the classroom relationship between university teachers and international students. The article is inspired by an intercultural communication…

This study examines the extent to which a study abroad (SA) experience has an effect on the L2 written and oral performance of a group of Spanish undergraduates, studying English as a second language (L2) in a university in the UK. This article also examines the role that individual differences, such as the participants' motivation, attitudes,…

We examine the argument that teaching will be more effective if adapted to individuals--what we call the interaction/adaptation hypothesis. What is likely correct about this hypothesis (but needs more research) is that modality of instruction may need to be adapted to certain types of content (e.g., geometry vs. literature) or to domain of…

The Trait Treatment Interaction (TTI) Process approach is particularly adapted to the study of information-processing by receivers of information presented in the media. Differences in people's experiences do lead to different cognitive structures. Different people use the same machinery of perceiving, coding, storing, and retrieving. Neverthless,…

Research on aptitude-instructional treatment interactions has shown that the relation of general ability to learning tends to increase as instruction places increased information processing burdens on learners and to decrease as instruction is designed to reduce the information processing demands on learners. This report summarizes a research…