This report is part of a broader research effort which aims to enhance the construction industry's planning and operational capacity to meet crucial workforce needs, both existing and future, in attracting, training, and maintaining a skilled construction workforce. Specifically, this report provides a comprehensive review of the state of the art in the analysis of the Return-On-Investment (ROI) to education and training and makes recommendations for advancing the construction industry into a prominent leadership position in using training and results-based evaluation to improve the development and utilization of a skilled workforce.