Lorna Earl Ph.D. is the Past President of the International Congress of School Effectiveness and School Improvement (ICSEI). She is retired from a position as Associate Professor in the Theory and Policy Studies Department and Head of the International Centre for Educational Change at OISE/UT and is currently a .2 Professor at the University of Auckland. Throughout her career, she has concentrated her efforts on issues related to assessment (large-scale and classroom) and evaluation of large-scale reform in many venues around the world. Lorna has worked for over 30 years in schools, school boards, ministries of educaton and universities. As a leader in the field of assessment and evaluation, she has been involved in consultation, research, evaluation and staff development with teachers' organizations, ministries of education, school boards and charitable foundations in Canada, England, Australia, New Zealand, Europe and the United States. She is a prolific author and has written books, chapters and articles about assessment, using data for decision making, evaluation methods, knowledge mobilization, educational change and networking for school improvement.