We propose a method of generating teaching policies for use in intelligent tutoring systems (ITS) for concept learning tasks [1], e.g., teaching students the meanings of words by showing images that exemplify their meanings à la Rosetta Stone [2] and Duo Lingo [3]. The approach is grounded in control theory and capitalizes on recent work by [4],…

Four experiments were conducted to examine the role of orthotactic probability, i.e. the sequential letter probability, in the early stages of vocabulary acquisition by adult native speakers and advanced learners of German. The results show different effects for orthographic probability in incidental and intentional vocabulary acquisition: Whereas…

The aim of this study is to evaluate learning and acquisition strategies used by second/foreign language learners. This study is a comparative investigation of learning and acquisition strategies of successful and less successful language learners. The main question of the study is to investigate if there is a relationship between the learners'…

This article reviews all (quasi)experimental studies appearing in the first 19 volumes (1997-2015) of "Language Teaching Research" (LTR). Specifically, it provides an overview of how statistical analyses were conducted in these studies and of how the analyses were reported. The overall conclusion is that there has been a tight adherence…

Despite consensus that school absenteeism has negative consequences for children's life outcomes, until recently, little was known about the prevalence of absenteeism or its potential to moderate the impacts of school-based interventions. This study provides evidence from a randomized experiment of a preschool intervention involving 1,876 children…

The current study sought to investigate the relationship between critical thinking and speaking ability among EFL students at Payame Noor University (PNU) of Rasht. This research concerned determining the fact that whether language students who are as critical thinker, perform better in their speaking ability or not. In order to answer the…

The purpose of this study is to evaluate the views of German teacher trainers working in Turkey about their level regarding Reigeluth's organizational strategies and to analyze their views in terms of gender, geographic region, seniority, and graduated high school variables. While the population of the study consisted of German teacher trainers…

Multiple-choice tests such as the Vocabulary Levels Test (VLT) are often viewed as a preferable estimator of vocabulary knowledge when compared to yes/no checklists, because self-reporting tests introduce the possibility of students overreporting or underreporting scores. However, multiple-choice tests have their own unique disadvantages. It has…

Representative samples of fourth- and eighth-grade public school students from 21 urban districts participated in the 2011 National Assessment of Educational Progress (NAEP) in mathematics. Eighteen of the districts participating in the 2011 NAEP Trial Urban District Assessment (TUDA) participated in earlier assessment years, while three districts…

Representative samples of fourth- and eighth-grade public school students from 21 urban districts participated in the 2011 National Assessment of Educational Progress (NAEP) in reading. Eighteen of the districts participating in the 2011 NAEP Trial Urban District Assessment (TUDA) participated in earlier assessment years, while three districts…

We present a model allowing the measurement of the returns to plurilingual competences in a small open economy, considered as a reduced model of an open European labour market where different nationalities work together and therefore need to communicate either in one or in multiple languages. Our results suggest that high plurilingual competences…

This study examined scores from 133,906 operationally scored Test of English as a Foreign Language™ (TOEFL®) essays to determine whether the choice of composition medium has any impact on score quality for subgroups of test-takers. Results of analyses demonstrate that (a) scores assigned to word-processed essays are slightly more reliable than…