LXD Research conducted a study to evaluate the impact of the Zaner-Bloser Kickstart: Number Sense program, a math intervention designed to enhance foundational math skills among first and second-grade students in an Oregon school district over a three-year period from spring 2019 to Spring 2023. The program was implemented in two schools, engaging…

This study utilized a partially nested randomized control design to investigate the impact of Fusion, a first-grade math intervention. Blocking on classrooms, students were randomly assigned to one of the three conditions: a Fusion two-student group, a Fusion five student group, or a no-treatment control group. Two primary research questions were…

Recent work has demonstrated that having students study worked examples and answer self-explanation prompts as part of their problem-solving practice improves learning on researcher-developed measures of mathematical proficiency. However, little work has been done to date to investigate whether these benefits translate to improvements on the types…

Education reform in the United States is heavily regulated and has undergone various iterations in the past several decades. With each passing legislation, government mandates and educational initiatives become the focus of reform. School districts must constantly find ways to keep up with increasing state and federal accountability standards.…

This study utilized a partially nested randomized control design to investigate the impact of Fusion, a first grade math intervention. Blocking on classrooms, students were randomly assigned to one of three conditions: a Fusion two student group, a Fusion five student group, or a no treatment control group. Two primary research questions were…

In this dissertation, I present the findings from the implementation of an informational text reading comprehension intervention. Using a single-case multiple baselines across participants' experimental design, I examined results from three small heterogeneous groups of three to four students during the literacy block in a suburban fourth-grade…

The purpose of this study was to determine if there is a significant difference in test scores on the Grade Five Reading State of Texas Assessment of Academic Readiness involving male and female students identified as having the characteristics of dyslexia who received early dyslexia intervention and those who received late dyslexia intervention,…

A randomized controlled trial group design study funded by IES NCR Grant R305A090527 was conducted in which 16,307 3rd, 4th, and 5th grade students in 52 school grade-level clusters were randomly assigned to receive ST Math (program revision Gen3), a supplemental mathematics software instructional intervention, or to a business-as-usual…

Following the COVID-19 pandemic, students returned to the classroom facing heightened challenges. Students lacked motivation, struggled with increased mental health issues, and required social emotional learning. As teachers worked extensively to close deep academic deficits, they dealt with barriers such as increased behaviors that caused…

The current study compared the reading growth of (a) students who received targeted interventions, (b) students who received typical school interventions, and (c) students who were proficient readers at the study's onset. The participants were 1,513 students in first through fifth grades who attended one of three treatment schools or one of three…

The purpose of this study was to support the development and initial validation of the Intervention Selection Profile (ISP)-Skills, a brief 14-item teacher rating scale intended to inform the selection and delivery of instructional interventions at Tier 2. Teacher participants (n = 196) rated five students from their classroom across four measures…

The current study aimed to assess whether a single-session growth mindset intervention was effective in increasing beliefs in a growth mindset and academic motivation among fifth-grade students. Academic motivation and subsequent achievement tend to show declines with age and increasing difficulty in classes, and this was exacerbated during the…

Math facts are foundational for later math skill development, but many students demonstrate difficulties with math facts in early schooling. Drill-based interventions have been shown to effectively target foundational academic skills; however, there is limited research examining drill-based interventions for teaching math facts compared to basic…

Multi-tiered systems of support (MTSS) provide instruction and intervention to all students in schools. However, when many students within a setting demonstrate reading difficulties, there is likely a tier 1 problem which makes it infeasible to implement tier 2 or tier 3 interventions with large numbers of students due to limited resources. The…

We first examined the effects of a year-long professional development (PD) programme for elementary science teachers on fifth grade student performance on state-mandated science achievement tests of students from a treatment and a comparison group of teachers in the 2009-2010 academic year. Then, we investigated the longer-term impacts by…