Studies on multi-stage writing tasks with adults and children have shown that model texts and task repetition aid language acquisition, especially when learners work in collaboration. However, these studies have not included measures of task motivation, which is vital in young learners (YLs) and could help develop a more comprehensive…

This study examined the acquisition of L2 English vocabulary with clickers, focusing on the role of individual differences. Following a pretest-posttest design, we measured perception and performance among 61 English learners who took part in a vocabulary acquisition treatment, in which they answered Multiple Choice Questions (MCQs) via clickers…

The Program for International Student Assessment Young Adult Follow-up Study (PISA YAFS) is a new study that allows research into the characteristics, cognitive skills, and other life outcomes of young adults as they transition from high school to postsecondary life. This Research and Development report provides a snapshot of outcomes at the…

Multiple measures provide additional evidence a student may present, beyond an assessment score, that can indicate college readiness. This resource provides data on multiple measures that may be allowed to determine placement using the following categories: (1) other standardized and normed exams, or locally developed exams; (2) high school…

This paper reviews the research on the impacts of charter school attendance on students' academic and other outcomes, the mechanisms behind those effects, and the influence of charter schools on nearby traditional public schools, almost three decades after the first charter school was established. Across the United States, charter schools appear…

The essence of Genetics lies in the understanding of the concepts of Central Dogma of Molecular Biology. Although these ideas are fundamental to the field, they are notoriously difficult to understand and visualize. While simulation-based instructional materials are found to improve the teaching-learning process in science education, little has…

The purpose of this mixed methods study was to determine if there was a correlation between the Technological Pedagogical Content Knowledge (TPACK) rating of teachers and the frequency of technology use in the classroom. Furthermore, the study identified the types of Internet-based applications used in primary classrooms and teachers' perception…

The purposes of this study were to: (1) build an appropriate model for predicting primary schoolchildren's English vocabulary knowledge; (2) examine whether the developed model applies to new data; and (3) discuss how to apply the model to L2 vocabulary instruction. More specifically, the study asked third- and fourth-grade public primary school…

The purpose of this study was to determine whether students enrolled in Secondary (9-12) alternative educational schools, i.e.--district schools vs. charter schools, demonstrate significant differences in achievement as measured by the 2019 A-F Letter Grade Accountability System, as well as to determine whether district and charter schools differ…

Is public housing bad for children? Critics charge that public housing projects concentrate poverty and create neighborhoods with limited opportunities, including low-quality schools. However, whether the net effect is positive or negative is theoretically ambiguous and likely to depend on the characteristics of the neighborhood and schools…

About one third of college students are required to take remedial courses. Assignment to remediation is generally made on the basis of performance on a placement exam. When students are required to take a placement exam "prior" to enrolling in college-level courses, assignment to remediation may dissuade students from actually going to…

This dissertation is comprised of three papers that propose and apply psychometric models to deal with complexities and challenges in large-scale assessments, focusing on modeling rater effects and complex learning progressions. In particular, three papers investigate extensions and applications of multilevel and multidimensional item response…

For decades, the state of Arizona has used the General Educational Development (GED) Test to award the Arizona High School Equivalency (HSE) Diploma, as the GED Test was the only test available, recognized and accepted in the United States as the measure by which adults could demonstrate the educational attainment equivalent to high school…

A critical discussion of the assumption of uncorrelated errors in classical psychometric theory and its applications is provided. It is pointed out that this assumption is essential for a number of fundamental results and underlies the concept of parallel tests, the Spearman-Brown's prophecy and the correction for attenuation formulas as well as…

Purpose: The purpose of this study is to investigate the structure and measurement properties of the Aphasia Communication Outcome Measure (ACOM), a patient-reported outcome measure of communicative functioning for persons with aphasia. Method: Three hundred twenty-nine participants with aphasia responded to 177 items asking about communicative…