Specific Aim 3. To link student characteristics to response to intervention. The proposed study will link students' initial reading achievement, initial mindset, vocabulary ability, behavior/attention as well as race, sex, socioeconomic status, and parents' educational background to student response to intervention. It is hypothesized that students with lower initial reading achievement, higher initial levels of fixed mindset, higher vocabulary, lower parent educational background or socioeconomic status, and/or higher levels of problem behavior/attention initially will benefit more from the mindset intervention, particularly the embedded mindset intervention. It is hypothesized that no differences based on gender or race.