Download or read book The Goldilocks Challenge written by Mary Kay Gugerty and published by Oxford University Press. This book was released on 2018 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent push for impact measurement has been positive, but it has also led to wasted resources and often misleading data about what works. In The Goldilocks Challenge, Mary Kay Gugerty and Dean Karlan put forth four key principles to guide organizations of all sizes to create strong, "right-fit" data collection systems.