An emerging body of research suggests that incorporating randomization schemes in single-case research designs strengthens study internal validity and data evaluation. The purpose of this study was to test the utility and feasibility of a randomized alternating-treatment design in an investigation that compared the combined effects of vocabulary…

This paper explores whether language typology plays any role in lexical availability and spelling accuracy in L2 English. Two groups of adult speakers were compared: a group of native speakers of a language typologically distant from English with a logographic writing system (Chinese; n = 13) vs. a group of native speakers of a language…

Undergraduate students who have just completed an introductory statistics course often lack deep understanding of variability and enthusiasm for the field of statistics. This paper argues that by introducing the commonly underemphasized concept of measurement error, students will have a better chance of attaining both. We further present lecture…

Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…

Each state and jurisdiction that participated in the National Assessment of Educational Progress (NAEP) 2009 reading assessment receives a one-page snapshot report that presents key findings and trends in a condensed format. Overall results, achievement level percentages and average score results, comparison of the average score in 2009 to other…