Legalization and retail availability of recreational marijuana and adolescent use in schools.

Legalization of use and retail sales of recreational marijuana in U.S. states and the associated potential increase in access to marijuana and normalization of its use by adults could lead to increased use by adolescents.

Identifying profiles of school climate in high schools.

This cross-sectional study analyzed data from 364,143 students in 492 high schools who completed the Georgia School Climate Survey during the 2017-2018 school year. Through latent profile analysis, we identified that student perceptions of school climate could be classified into three distinct profiles, including positive, moderate, and negative climate. Using multinomial logistic regression, we then identified school and student characteristics that predicted student classification in the student profiles using the total sample and subsamples by race/ethnicity.

Development and Validation of a Measure Assessing Sustainability of Tier 2 and 3 Behavior Support Systems.

To identify the most effective strategies for implementing and sustaining Tier 2 and 3 behavior support systems, a measure of general and tier-specific factors hypothesized to predict sustained implementation is needed. To address this need, we conducted two studies examining the construct validity of the Advanced Level Tier Interventions Treatment Utilization and Durability Evaluation (ALTITUDE) measure: one assessing the content aspects of construct validity (Study 1) and one assessing the structural and external aspects of construct validity (Study 2). In Study 1, participants included an expert panel of 26 members who provided iterative feedback during measure development.

A tier 1 intervention to increase ninth grade engagement and success: Results from a randomized controlled trial.

Although high school graduation rates are improving, many students are still not successful. Research has documented that 9th grade is a pivotal year in determining whether a student will graduate or drop out. The purpose of this randomized controlled trial was to assess the effects of a Tier 1 intervention model (freshmen success) for 9th grade students to increase school engagement, attendance, credits earned, and grade point average (GPA).

Adoption of PBIS within school districts.

Recent research in implementation science has focused on identifying factors that predict adoption of evidence-based practices in schools. Less attention has focused on examining the adoption of practices within districts. This study included a sequential cohort of 552 districts in 25 U.