Secondary outcome data were collected from teachers through an annual survey conducted in spring. This survey was administered to a random sample of 24 teachers (stratified by grade) at each of the intervention and control schools participating in the study; a new sample was selected each year. Eligible teachers included all full-time classroom teachers and could include RiPP teachers who delivered the curriculum in intervention schools.2 Ninety-eight percent (N = 854) of the sampled teachers completed a survey in the third year. Among responding teachers in intervention schools, 30 percent were RiPP teachers.