Isolation of Results: Defining the Impact of the Program, the Measurement and Evaluation Series

This book addresses the most critical challenge facing evaluators: isolating the effects of the solution from other influences. The techniques are presented beginning with the most credible, rigorous approaches and moving to the more subjective approaches. The weakest technique (which is using estimates) is made as credible as possible. Consequently, almost 200f the book is devoted to using estimates, including clear and proven steps for increasing the reliability and validity of the estimation process.