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.…

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…

This study provides the first large-scale quantitative exploration of mathematical language use in U.S. classrooms. Our approach employs natural language processing techniques to describe variation in the use of mathematical language in 1,657 fourth and fifth grade lessons by teachers and students in 317 classrooms in four districts over three…

Background: Reading and reading comprehension are crucial skills, yet many students in grade 4 struggle with them. To address this, several instructional practices have gained popularity. For one, explicit reading strategy instruction (ERSI) is deemed useful, given the finding that successful readers tend to employ reading strategies. As a second…

There is no consensus about whether a teacher-centred or student-centred instructional approach is more effective for students' maths achievement. Prior studies have highlighted the role of students' maths self-concept as a predictor and mediator for maths achievement. This study examined whether instructional approaches were related to students'…

This study's first purpose was to investigate effects of a fourth- and fifth-grade "next-generation" fraction intervention, which included six enhancements over a previously validated fraction intervention, designed to address career- and college-readiness standards. The study's second purpose was to assess effects of the next-generation…

Zearn Math is a popular software platform for K-8 mathematics learning, designed to enable all students to successfully access grade-level content. RAND researchers collaborated with Zearn, the product's developer, to design this evaluation. Then RAND conducted the study independently, randomly assigning 64 schools in an urban Texas district to…

The researcher conducted a quasi-experimental quantitative study to determine whether there was a significant difference in reading achievement between students who looped and students who did not loop. Looping is when a group of students stay with the same teacher and classmates for two or more consecutive years. The students in this study were…

Over the last 62 years, mathematics reform has occurred due to a political push after results from a major survey or report were released stating that the United States scored lower than other countries. With each reform effort, teaching methods were changed to match the new initiative. Math curriculum was a key point in each of these reform…

This study examined the factors that determined the science achievement of fourth-grade students on the Trends in International Mathematics and Science Study (TIMSS) 2019 in the USA. The data were retrieved from the TIMSS international database and imported to the R program for manipulation. The EdSurvey package was used to conduct multilevel…

Background: Proficient reading skills are crucial for Foundation Phase learners to develop critical thinking and problem-solving abilities. The 2021 PIRLS assessment highlighted alarmingly low reading proficiency among ten-year-olds. Effective reading instruction, and a positive reading environment are essential for developing confident, skilled…

The problem addressed through this study was the low levels of reading comprehension of literary and informational texts among fourth-grade students statewide. The reading workshop model and the guided reading approach are two different instructional methods used to teach reading to fourth-grade students at two school districts in Texas. The…

This study's 1st purpose was to investigate effects of a 4th- and 5th-grade "next-generation" fraction intervention, which included 6 enhancements over a previously validated fraction intervention, designed to address Career- and College-Readiness standards. The next-generation intervention is referred to as "Super Solvers."…

The purpose of this study was to conduct a conceptual replication of Pendergast et al.'s (2018) study that examined the diagnostic accuracy of a nomogram procedure, also known as a naive Bayesian approach. The specific naive Bayesian approach combined academic and social-emotional and behavioral (SEB) screening data to predict student performance…

This research uses a descriptive quantitative statistical design to examine campus-level results from the State of Texas Assessments of Academic Readiness (STAAR). The focus is on describing the achievement disparities between campuses that implemented Transitional Bilingual Education (TBE) programs and those implementing Dual Language (DL)…