This paper informs users of data collected in international large-scale assessments (ILSA), by presenting argumentsunderlining the importance of considering two design features employed in these studies. We examine a commonmisconception stating that the uncertainty arising from the assessment design is negligible compared with that arisingfrom the…

Problem solving skill is a basic skill that students should acquire both in mathematics education and their daily lives. This research aims to examine fourth-grade elementary school student skills in solving four-operation problems prepared in different structures according to the situation of the unknown. In this research, on the one hand,…

The COVID-19 pandemic disrupted education worldwide as educational systems made the decision to close schools to contain the spread of the virus. The duration of school closures varied greatly internationally. In this study, we use representative trend data from more than 300,000 students in 29 countries to examine whether the cross-country…

This qualitative multi-site case study explores the self-identified traits of four Philadelphia schools that demonstrate growth in grade four proficiency on the Math Pennsylvania System of State Assessment (PSSA). Obtained proficiency/advanced scores on the PSSA show a drop from third to fourth grade cohorts during 2017, 2018, and 2019. In…

This study aims to apply the differential item functioning (DIF) technique with the deterministic inputs, noisy "and" gate (DINA) model to validate the mathematics construct and diagnostic attribute profiles across American and Singaporean students. Even with the same ability level, every single item is expected to show uniform DIF…

In international large-scale assessments, students may not be compelled to answer every test item: a student can decide to skip a seemingly difficult item or may drop out before the end of the test is reached. The way these missing responses are treated will affect the estimation of the item difficulty and student ability, and ultimately affect…

The Cross-Classified Mixed Effects Model (CCMEM) has been demonstrated to be a flexible framework for evaluating reliability by measurement specialists. Reliability can be estimated based on the variance components of the test scores. Built upon their accomplishment, this study extends the CCMEM to be used for evaluating validity evidence.…

The purpose of this study was to discover the relationship between individual student reading levels to mathematics levels utilizing the State of Texas Assessments of Academic Readiness, STAAR, scores for third- and fourth-grade students before and after the COVID-19 pandemic school closures. The study had four research questions examining third-…

Early detection of and relevant information on children's mathematical difficulties is important to initiate targeted teaching and intervention. This study investigated the extent to which strategy use in single-digit addition provides additional predictive information about 61 grade one children's (6-year-old) mathematical achievement 3 years…

The goal of Smithsonian Science for North and South Carolina Classrooms was to provide teachers with ongoing, differentiated professional development and research-based curricular materials to improve elementary student achievement in science, mathematics, and reading. This work used an inquiry-based science curriculum, Smithsonian Science for the…

The five-year project, "Smithsonian Science for North and South Carolina Classrooms" (hereafter "Smithsonian Science"), offers important evidence on the impact of the phenomena-driven science curriculum, "Smithsonian Science for the Classroom," paired with ongoing, differentiated, high-quality professional learning…

Background: Teaching quality is assumed to be an essential prerequisite for student learning outcomes such as mathematics confidence and mathematics achievement. Notwithstanding its significance, empirical research examining the relations between teaching quality and learning outcomes is still limited, particularly among primary school students.…

Background/purpose: This research aimed at designing an educational program based on gamification for teaching mathematics as required by the Trends in International Mathematics and Science Study (TIMSS) to determine its impact on advancing strategic competence among fourth-grade male students in the first semester of Academic Year 1445AH in…

Purpose: The overarching purpose of this journal-ready dissertation was to determine the degree to which differences existed in Grade 4 STAAR Writing performance by student economic status, gender, and language status. In the first article, the purpose was to investigate the extent to which student economic status (i.e., Not Poor, Moderately Poor,…

From once being synonymous with reading and writing, literacy, as a concept has expanded in the last three decades to today being associated with multiple meaning making forms and competences. Impactful, in this shift, has been the research orientation of New Literacy Studies. Besides academia, the literacy concept has also had a major influence…