This report describes a research effort extending over two and a half years. Its primary objective was to develop the technology in which decisions and inferences are made by individuals and implemented on a computer. The conceptual framework within which the decision aids are developed is personalist decision theory including Bayesian Inference. Tasks were undertaken in five general areas method generalization development of specific techniques development of basic theory behavioral research and illustrative case studies. They resulted in 18 technical reports, 10 working papers, and 7 archival publications. Titles and abstracts of working papers are given in the appendix.