In addition, we are interested in the possibility of heterogeneous effects on particular subgroups of students. (educationnext.org)
Schools that fail to make adequate yearly progress (meet achievement targets) for three consecutive years, even if it's just for a particular subgroup of students, must offer free tutoring to all students. (edweek.org)
Has the national performance of a particular subgroup of the student population improved over time? (teachermagazine.com.au)