Paul Preuss 
School Leader”s Guide to Root Cause Analysis [PDF ebook] 

Don’t jump from problem to solution without first investigating root causes. This book helps you more accurately focus on school improvement issues, so you can avoid wasting precious time and resources. It is clearly written, contains lots of real examples, and is presented in a style and format designed for the non-expert. It will help you make decisions which will improve learning for all students.