Science, Technology, Engineering, and Math (STEM) skills are increasingly required of students to be successful in higher education and the workforce. Therefore, modeling assessment outcomes accurately, often using more types of student data to get a complete picture of student learning, is increasingly relevant. The Program for International…

Cognitive diagnostic models can uncover students' mastery of multiple fine-grained skill attributes or problem-solving processes. A number of studies have applied cognitive diagnostic models to detect students' knowledge mastery in mathematics and language testing. However, few studies focus on cognitive diagnostic assessment in K-12 science…

More than ever before, countries are relying on their experts in STEM (Science, Technology, Engineering, and Mathematics) fields to find solutions to serious global problems, such as climate change, hunger, and disease. Unfortunately, the growing demand for these experts is outpacing supply. At each stage in the educational pipeline from the…

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…

This dissertation aims to investigate the effect size measures of differential item functioning (DIF) detection in the context of cognitive diagnostic models (CDMs). A variety of DIF detection techniques have been developed in the context of CDMs. However, most of the DIF detection procedures focus on the null hypothesis significance test. Few…

This study aimed to understand Malaysian physics teachers' teaching practices from a pedagogical content knowledge (PCK) perspective. The physics topic of interest was Archimedes' principle. A multiple-case study approach was used, and classroom teaching observations and audio records of teaching, interviews, and collection of documents were the…

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…

The Performance Expectations described in the Next Generation Science Standards (NGSS) pose significant challenges for assessment design. Multiple models of assessments, including paper-and-pencil and hands-on based performance assessments, can be utilized to assess student competency while applying scientific and engineering practices, in the…

A primary purpose of cognitive diagnosis models (CDMs) is to classify examinees based on their attribute patterns. The Q-matrix (Tatsuoka, 1985), a common component of all CDMs, specifies the relationship between the set of required dichotomous attributes and the test items. Since a Q-matrix is often developed by content-knowledge experts and can…

This three-article dissertation considers the pedagogical practices for developing statistically literate students and teaching data-driven decision-making with the goal of preparing students for civic engagement and improving student achievement. The first article discusses a critical review of the literature on data-driven decision-making…

This qualitative case study examines the professional development practice of Lesson Study as a vehicle for teacher learning. Through observing the participation and analyzing interviews of a group of United States middle school mathematics educators as they engaged in Lesson Study, this study examines teachers' learning with respect to (a)…

This study examined the relationships among school leadership practices, parental involvement, disciplinary climate, students' perceptions on reading, and student achievement with sample obtained from the combined data of Progress in International Reading Literacy Study (PIRLS) and Trends in International Mathematics and Science Study (TIMSS) 2011…

My study was to discover the perceptions of general secondary senior high school biology teachers about the application of curriculum 2013. Their further opinions of biology topics and the instructional practices in the class have supported the findings of this study. In addressing this study, general senior secondary school (GSSS) biology…

The purpose of this study was to explore the effects of "yutori" reforms on Opportunity to Learn (OTL), as defined by Stevens' (1993, 1996) multidimensional framework, and to examine how the changes in OTL may have subsequently affected Japanese 8th graders' mathematics achievement as measured by the Trends in Mathematics and Science…

According to the TIMSS 2015 international study findings, students who enjoy learning mathematics a lot scored much higher (average 61 points) than the students who do not enjoy it a lot. Enjoying learning mathematics is one of the indicators of the construct "intrinsic motivation" towards mathematics, and this type of other constructs,…