Students were in Grades 8 or 11 and enrolled in general education social studies or in Grades 7-12 and enrolled in general education English/language arts classes. Data were collected using measures of reading and other academic skills, attitudes, and student characteristics. All students participated for one school year only. The datasets include demographic information on students provided by their school districts in addition to the data collected by the study teams. See master codebook for details on the variables in each dataset. Note: All data is provided in long format, and as such each participant has multiple rows.