The articles in this issue call for a deeper and better understanding of data, their use, the conditions that are most conducive for using data well, how individuals and groups of practitioners make sense of the data before them, and the intended and unintended consequences of data use for school improvement. The authors together craft important…

In the present study, an examination is conducted in three school districts of how data are used to improve classroom practice. In doing so, we explore the effects that attitudes toward data, principal leadership, and computer data systems have on how data are used to affect classroom practice. Findings indicate that educators are ambivalent about…

This study explored how teachers and school administrators connect large-scale assessment results with school improvement planning. Using a semi-structured format, 20 teachers and 18 administrators were interviewed from two school districts in southern Ontario, Canada. The interview protocol contained a range of questions related to teaching and…

In 1922 Edward Thorndike wrote, "The task of education is to make changes in human beings. For mastery in this task, one needs definite and exact knowledge of what changes are made and what ought to be made". Seventy-nine years after he wrote these words, the 2001 No Child Left Behind (NCLB) legislation stated, "Schools must have…

This book offers guidelines for action research, a process in which teachers experiment with various strategies at the classroom level. Action research is the process of systematically evaluating the consequences of educational decisions and adjusting practices to maximize effectiveness. Essentially the examination of one's own practice, it…