This is the third issue of "The Evaluation Exchange" devoted entirely to the theme of methodology, though every issue tries to identify new methodological choices, the instructive ways in which people have applied or combined different methods, and emerging methodological trends. For example, lately "theories of change" have gained almost…

This issue of "The Evaluation Exchange" focuses on out-of-school time (OST). Several authors provide insights into how they, and others, are tackling measurement issues, from using technology and data systems to collect information and track progress, to applying lessons learned from developing early childhood quality measures. Other authors…