The background and development of quality of life and family quality of life: applying research, policy, and practice to individual and family living

This article introduces the concepts of quality of life and family quality of life and shows how they have developed in the field of intellectual and developmental disabilities in terms of concepts and principles. The article underscores the relevance of many of the principles and practices to a wide range of disabilities and challenges in the broad field of human development. Finally, the article provides an introduction to the other articles in this special issue, and considers their relationship to the broader areas of research, practice, and policy.