This paper provides practical guidance for researchers who are designing and analyzing studies that randomize schools--which comprise three levels of clustering (students in classrooms in schools)--to measure intervention effects on student academic outcomes when information on the middle level (classrooms) is missing. This situation arises…

The purpose of this qualitative study was to examine the lived experiences of a primary teacher in order to illuminate the nature of primary teaching. Using qualitative methods, five university researchers spent nine months during the course of one school year with a second grade teacher and her students. This inquiry took a multiple lens…