The purpose of this paper is to showcase new research that seeks to provide guidance on the heterogeneity of treatment effects by utilizing the variance of demographic differences in state assessments. This study is focused on a simple randomized block design where students are nested within schools, and within each school students are randomized…

Literature indicates that technology, including exergaming, is popular among adolescents and can be used as a supplemental tool in the physical education classroom. Therefore, the purpose of this study was to examine third and fourth grade students' perceived enjoyment and exertion levels toward exergaming in relation to traditional physical…

Informal science opportunities provide authentic experiences to stimulate students' interests in science and engineering and foster their curiosity through problem-based investigations. STEMulate Engineering Academy was designed to provide children (Grades 3-5) engineering opportunities and offer teachers a unique professional development…

This study was designed to examine the effects of an intervention program aimed at improving reading, spelling, and vocabulary skills through linguistically explicit instruction in morphological awareness. Sixteen children, diagnosed with language impairment, participated in this study. Instruction for the experimental group focused on increasing…

Student achievement in literacy and mathematics for students involved in a Spanish language program at a large and diverse school district in Arkansas, were compared to peers' scores who did not participate in the program. The program was implemented to enroll native English speaking students in a Spanish enrichment program (SEP) with the intent…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…