Pretest MSELS Scores.

aRandom effect is significant (non-zero), and rho is the proportion of residual variance explained by the within classroom effect.bEE group membership (No = 0, Yes = 1).cUsed published environmental education curriculum (No = 0, Yes = 1).dSpent time in outdoors during class time (No = 0, Yes = 1).eTeacher holds Master’s degree (No = 0, Yes = 1).fReference group is teachers with 0–2 years teaching experience (0–2 years = 0, 3–5 years = 1, 6–8 years = 2, 9–11 years = 3, 12 or more years = 4).gStudent gender (Male = 0, Female = 1).hReference group for student ethnicity is white students.iSchool-wide average student/teacher ratio.jSchool is either a charter school or private school (No = 0, Yes = 1).kSchool has a Title I program (No = 0, Yes = 1).lSchool categorized as urban (No = 0, Yes = 1).Each labeled column represents a separate multiple regression model for each section of the MSELS as well as total scores. Metric coefficients and p-values are displayed. Each model includes random effects for classroom and all standard errors are robust.*p**p***p