The heterogeneity in the developmental trajectories of math motivational beliefs (i.e., expectancies for success and subjective task value beliefs) was examined among Asian and Latinx male and female students from Southern California across Grades 8 through 10 (n = 2,710; 50% female; 85% Latinx; 15% Asian; M[subscript age] = 13.77). By conducting…

Secondary course assignment substantially determines a teacher's day-to-day work life, incentivizing them to realize their personal desires, which prior work shows tend to be working with more advanced students. Teachers have varying abilities to enact these desires, potentially due to their political capital, which is largely influenced by…

As immigrants account for an increasing proportion of American youth, understanding how these young people experience change in their citizenship status is an important, yet rarely examined area for research. There is a plethora of evidence that opportunities to participate in American society are stratified according to class, race and ethnicity.…

In October 2023, the California Department of Education released test scores for all students in Grades 3-8 and 11 for the 2022-23 school year. These results represent an opportunity to analyze whether and to what extent student learning has rebounded after the dramatic declines in scores resulting from the COVID-19 pandemic and related school…

Given math's importance, states are adopting a range of K12 policies to improve math outcomes. As these and other policies unfold, policymakers need to monitor intended outcomes and ultimately gauge impact. They need answers to basic questions: Are more students taking and passing algebra and advanced math? Are performance gaps changing between…

This study assesses the impact of five years of community level activities in the Pomona Youth and Family Master Plan (PYFMP) on four school-related risk and protective factors including academic failure, low school commitment, school opportunities for prosocial involvement, and school rewards for prosocial involvement. The intervention and…

The purpose of this study was to explore grade-level differences (7th, 8th, and 9th) among junior high school students' perceptions of the effects of participation in physical education (PE) class on individual environmental stress. The role of physical activity as a stress reduction tool has been well documented. However, physical activity as a…

This study examined the association between participation in a school-based group-mentoring program (Project Arrive) and academic outcomes in a group of ninth-grade students who had been identified as at high risk of high-school dropout (n = 239). Comparison participants were ninth-grade students with similar levels of risk (n = 980). Using…

Little is known about the naturalistic development of mindfulness in adolescence and how it relates to changes in emotional well-being. The current longitudinal study examined the development of one dimension of mindfulness, nonreactivity to difficult inner experience (or in more colloquial terms, being able to notice, but "take a step…

This study estimates the causal impact of 8th grade English learner (EL) reclassification on high school English language arts (ELA) standardized test scores, SAT (Scholastic Aptitude Test) reading, and on-track to graduate status. I apply a regression discontinuity design to rich administrative data from a large district in California. The…

Using a national sample of students' writing from the National Study of Writing Instruction, this study examines the current state of writing in the mathematics classroom and the extent to which enactments align with the intentions established in the research base and curricula articulated by NCTM and the CCSS-M. Over 3,000 writing assignments…

Although there is substantial research that has guided middle school reform, there is insufficient support of Latinx students during their normative secondary transition (middle school to high school). Current research emphasizes that students who are not prepared when entering high school will face grim academic futures. The study explores the…

English learners (ELs) lag behind their peers in academic achievement and attainment, partly due to limited exposure to academic content. Prior studies that examine high school course-taking find significant course access gaps between ELs and non-ELs but provide little information on the relation between course-taking and time spent as an EL. This…

This dissertation explored the roles schools can play in the successful outcomes of large carnivore or keystone reintroduction projects. Schools are more than centers for knowledge acquisition--they connect their community and disseminate information quickly to a wide audience. This study took place in California's Eastern Sierra Nevada, a…

Identifying patterns of victimization continuity and discontinuity over time can inform school-based efforts to prevent and intervene with peer victimization. We conducted a four-wave longitudinal study of students through their transition from middle to high school. Participants were 135 diverse students from Grade 8 to Grade 11 who completed…