The purpose of this quantitative correlational-predictive study was to determine if and to what extent there is a relationship between facets of trait mindfulness and perceived attention control among college students in Southern California. The study was formulated based on the multi-faceted mindfulness model and the Attention Control Theory. The…

Because studies examining youth drug use often have data with a high proportion of zeros, they often do not meet the assumptions for univariate or linear regression analyses that are typically used. We demonstrate the use of zero-inflated negative binomial regression models to address excessive zeros in drug use frequency on perceptions of…

We administer a survey to study students' preferences for relative performance feedback in an introductory economics class. To do so, we elicit students' willingness to pay for/avoid learning their rank on a midterm exam. Our results show that 10% of students are willing to pay to avoid learning their rank. We also find that female students are…

Growth mindset has been shown to predict academic achievement in a variety of student populations, though the strength of the relationship can vary depending on the characteristics of the students examined. Using a large-scale sample of middle school students from a diverse district in the United States, we examine how multiple facets of students'…

The number of students opting out of standardized tests has grown in recent years. This phenomenon represents a potential threat to our ability to accurately measure student achievement for schools and districts. This working paper documents the extent to which opting out is observed in the CORE districts. It then models the extent to which…

Teacher candidates in California are required to pass four standardized tests: the California Basic Educational Skills Test, the California Subject Examinations for Teachers, the Teacher Performance Assessment, and the Reading Instruction Competence Assessment. Many underrepresented minority teacher candidates fail to pass these required tests in…

This study assessed the prevalence of weapon-related behaviors and experiences in secondary schools in California, their intercorrelations, and predictors at the individual and school levels. This study is based on a representative sample of 889,726 secondary school students in California based on the California Healthy Kids Survey. Prevalence…

The world currently has more than three billion smartphone users. The smartphone is fully integrated into the daily life of individuals, including 95% of American teenagers. Excessive use of the smartphone leads to smartphone addiction and problematic smartphone use (PSU) which has been associated with depression, stress, reduced self-esteem, and…

Strong evidence indicates that student expectations of success in mathematics decline in middle school. The goal of the present study was to examine whether the expectations of teachers and the quality of the student-teacher relationship play a role in these declines. A total of 201 (86 boys, 115 girls) Latino/a students (M = 11.0 years) and their…

Accessible instructional materials are materials which can be used by students with disabilities as easily, effectively, and thoroughly as students without disabilities. Unfortunately, policy evidence suggests the California Community Colleges are not ensuring instructional materials are accessible. Surprisingly, while accessibility is often…

The present study examined whether high school students' (N = 1,658) self-reported social-emotional strengths collected at the beginning of the school year via schoolwide screening could predict student membership in one of three truancy categories (low, moderate, and high to chronic truancy) using discriminant analysis. Results indicated that…

Community colleges are an important, yet understudied, tier of the higher education system in the United States. Community colleges serve students from all socio-economic backgrounds. As such, community college students face challenges to their educations not seen in those attending more traditional schools. This dissertation recognizes these…

Additional to the lack of gender and ethnic diversity, the attrition rate among Physics and Engineering undergraduates is as high as 40%. Considering the impact of STEM gateway course on students' choice of major, we investigated the association between students' Expectancy-Value beliefs at the beginning of the class with their intent to persist…

Elementary school teachers' math anxiety has been found to play a role in their students' math achievement. The current study addresses the role of teacher math anxiety on ninth-grade students' math achievement and the mediating factors underlying this relationship. Using data from the National Mindset Study, we find that higher teacher math…

The influence of parental beliefs and behaviors on children's math confidence and performance is well documented, but few studies examine these associations over time, or in large samples of Latino/a families. This study used longitudinal data from 247 (114 sons and 133 daughters) mother-child dyads to examine whether maternal math gender…