The field of Instructed Second Language Acquisition (ISLA) has expressed interest in pursuing a research agenda that expands the current heritage language (HL) strand of research to investigate how this heterogeneous population re-learns their family language, and how this experience differs from that of second language (L2) learners. This…

This study aims to investigate users' search tactic application and system support in using digital libraries. A user study was conducted with sixty digital library users. The study was designed to answer three research questions: 1) How do users engage in a search process by applying different types of search tactics while conducting different…

The present study built upon an earlier study by Ebner and Ehri (in press), which examined the Internet's potential as a learning tool for enhancing college students' vocabularies. The current research sought to extend that study by determining how to make online vocabulary learning more effective. An experiment was conducted to investigate a…

This study explored the effects of alternative forms of argumentation on undergraduates' physics solutions in introductory calculus-based physics. A two-phase concurrent mixed methods design was employed to investigate relationships between undergraduates' written argumentation abilities, conceptual quality of problem solutions, as well…

This study examined how the use of teacher think-alouds influenced and transferred to the reading comprehension and metacognition of seventh grade middle school social studies students in two Reading Apprenticeship classrooms. The researcher conducted classroom observations at a middle school in a mid-size suburban and rural school district in…

State tests, which assess reading comprehension, ask students to make inferences and connections beyond the text. The problem of practice in which this study is situated is that students are having difficulty making meaningful connections and developing inferences in relation to the material that is read aloud together in class or assigned for…

This dissertation tests a grammatical structure, differential object marking (DOM), which is particularly difficult for L2 learners to acquire. DOM is a phenomenon in which some direct objects are morphologically marked to distinguish them from subjects (Comrie, 1979). In Spanish, animate and specific direct objects are marked with the preposition…

The purpose of this research study was to understand the construct of usability from the perspective of 74 students enrolled in six online courses offered by one online and distance learning program at a large, public university in the Midwest. Six courses, designed and developed by two different groups, professional and nonprofessional…