An educational trust is hoping to set a precedent among grant makers by setting up regular independent reviews to assess the impact of its grants.
Shine (Support and Help In Education) is one of the first organisations to undertake such a study. The London School of Economics ran the assessment by carrying out confidential interviews.
"When we embarked on this study, it was clear that not enough organisations are doing it," said the charity's chief executive Stephen Shields.
"We'd like other organisations to look at the report. The aim of making this document public is to throw it into the pot and generate discussion."
Shine, which was set up in 1999 to fund educational projects for disadvantaged and disengaged children and has awarded more than £4m in grants, will publish the review on its website.
Shine's report, which took two years to complete, includes an impact matrix designed to describe the educational, economic and social benefits of the projects Shine has funded.