IFAS Extension
Elaborating Program Impacts through Data Analysis
Glenn D. Israel
Other
Abstract
A UF/IFAS numbered Fact Sheet. This document explains how to analyze Extension program impacts using multivariate statistical techniques. It outlines phases of data analysis, including identifying data errors, assessing changes in impact indicators, and examining relationships between program participation and outcomes. The paper emphasizes the role of contextual variables in clarifying or distorting program effects and introduces concepts such as spurious, conditional, distorter, and suppressor relationships. By incorporating these variables, evaluators can avoid misleading conclusions and improve the validity of their findings. Publication date: September 1992.
About this Publication
This document is PEOD3, one of a series of the Department of Agricultural Education and Communication, UF/IFAS Extension. Original publication date September 1992. Revised June 2015, June 2018, and June 2021. Visit the EDIS website at https://edis.ifas.ufl.edu for the currently supported version of this publication.
About the Authors
How to Cite
Israel, G. D. (2009). Elaborating Program Impacts through Data Analysis. EDIS, 2009(1). https://doi.org/10.32473/edis-pd003-1992
Authors
Glenn Israel
Specialist
University of Florida
professor emeritus, Department of Agricultural Education and Communication
Contacts
Sebastian Galindo
Specialist
University of Florida
research associate professor, UF/IFAS Department of Agricultural Education and Communication