This dissertation includes three essays in the field of economics of education. The first essay estimates the effect of top school management on student achievement in America. I use newly-collected data on the tenures of school district superintendents--the highest-ranking executive in U.S. school districts--to estimate the impact of individual…

This commentary provides an external perspective on NASP's first public report on racial and ethnic differences in Praxis outcomes. These data demonstrate racial disparities in pass rates but do not provide information regarding the causes of these disparities. This report underscores the need for expanded public reporting of Praxis data in order…

The purpose of this study was to determine whether struggling adolescent writers could learn sentence and paragraph writing skills from a software program. Nine junior-high and nine senior-high struggling writers participated in a multiple-probe across-students design that was replicated six times. Instructional procedures within the software…

Purpose: We proposed and tested a causal instantiation of the World Health Organization's International Classification of Functioning, Disability and Health (ICF) framework, linking acoustics, intelligibility, and communicative participation in the context of dysarthria. Method: Speech samples and communicative participation scores were collected…

Purpose: The current study examined the role of attention and language ability in nonverbal rule induction performance in a demographically diverse sample of school-age children. Method: The participants included 43 English-speaking monolingual and 65 Spanish-English bilingual children between the ages of 5 and 9 years. Core Language Index…

The aim of this study is to determine the effect of writing education carried out according to the self-regulation strategy development model on the self-regulation writing skills, self-efficacy perceptions, and creative thinking skills of gifted and talented students. In this study, a pre-test and post-test design with a control group was…

A common goal of Intelligent Tutoring Systems (ITS) is to provide learning environments that adapt to the varying abilities and characteristics of users. This type of adaptivity is possible only if the ITS has information that characterizes the learning behaviors of its users and can adjust its pedagogy accordingly. This study investigated an…

Previous studies found that bilingual children and adults with typical language development (TLD) perform better than monolinguals in novel word learning, but show lower scores on lexical retrieval tasks (e.g., naming known words). Children with developmental language disorder (DLD) lack in their abilities in both tasks compared with children with…

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…

Objective: To determine the efficacy of using a narrative-based intervention to reduce HIV stigma among members of the general public in a rural community in Ecuador. Design: This cross-sectional intervention study involved a convenience sample of 133 participants from Cariamanga, Ecuador. We used a post-test only comparison group design. Setting:…

This research aimed to investigate the effect of project-based learning (PjBL), predict-observe-explain (POE), and predict-observe-explain based project (POEP) on metacognitive awareness and cognitive learning outcomes in biology learning. The research used a pretest-posttest nonequivalent control group design. The experiment was conducted from…

This research aims to reveal the effectiveness of the use of Kofie GeBoL media in improving (1) vector representation ability and (2) critical thinking ability in physics instruction. It is a descriptive quantitative study with the quasi-experiment design. It was conducted in two stages: empirical try out and implementation of Kofie GeboL to see…

This article reports a classroom-based study of the effects of two types of corrective feedback (CF) on the acquisition of 3rd person "-s." One hundred and nine Chinese university students completed three communicative tasks: One group received implicit CF consisting of a single corrective move (implicit recasts), a second group received…

Purpose: The purpose of this study was to examine the perceptual ratings and performance evaluations of students who do and do not stutter by professors who require oral presentations. Additionally, this study sought to investigate the influence of behaviors related to communication competence on perceptual and evaluative ratings. Method: One…

This paper analyses the associations between computer use in schools and at home and test scores by using TIMSS data covering over 900,000 children in fourth grade. When controlling for school fixed effects, pupils who use computers at school, especially those who use them frequently are found to achieve less than students who never use computers.…