This study used mixed methods to investigate the relationships between parental leave policy components and academic achievement measured by TIMSS and PIRLS. Qualitative document analysis was used to analyze the policy documents and available literature on all the parental leave policies that had been implemented early enough to potentially affect…

Teaching science concepts for conceptual understanding has its challenges. Promoting conceptual change in the science classroom can be difficult because most concepts are complicated and counter-intuitive. This dissertation research aimed to determine the effect of teaching for conceptual understanding models on pre-service teachers' conceptual…

Reading development in students who are second language learners (SLLs) has been a concern of many educators. It is important to understand reading development in students who are SLLs to effectively support their reading development. The dissertation consists of two studies, presented in two stand-alone manuscripts, that aimed to deepen our…

A purpose of this study was to explore the inter-relations among eighth grade mathematics student achievements in the content domains of "Number, Algebra, Geometry, and Data & Chance" and the cognitive domains of "Knowing, Applying, and Reasoning," in the context of the Trends in International Mathematics and Science Study…

This study was designed with the overall goal of understanding how difficulties in reading comprehension are associated with early adolescents' performance in large-scale assessments in subject domains including science and civic-related social studies. The current study extended previous research by taking a cognition-centered approach based on…

Cross-national comparisons of responses to survey items are often affected by response style, particularly extreme response style (ERS). ERS varies across cultures, and has the potential to bias inferences in cross-national comparisons. For example, in both PISA and TIMSS assessments, it has been documented that when examined within countries,…

The Third International Mathematics and Science Study (TIMSS) study revealed that test scores from high school students were below average in mathematics and science. Studies show that part of it stem from the traditional methods of teaching rather than the standards based teaching. According to the No Child Left Behind (NCLB) act, students should…