Thirty-five chapters describe various judgmental heuristics and the biases they produce, not only in laboratory experiments, but in important social, medical, and political situations as well. Most review multiple studies or entire subareas rather than describing single experimental studies.

Policy-capturing models, data-based aids, expert systems and decision analysis are the main decision-making techniques introduced here, with attention to their methodological bases and practical evaluation.

The Fifth International Congress of Logic, Methodology and Philosophy of Science was held at the University of Western Ontario, London, Canada, 27 August to 2 September 1975. The Congress was held under the auspices of the International Union of History and Philosophy of Science, Division of Logic, Methodology and Philosophy of Science, and was sponsored by the National Research Council of Canada and the University of Western Ontario. As those associated closely with the work of the Division over the years know well, the work undertaken by its members varies greatly and spans a number of fields not always obviously related. In addition, the volume of work done by first rate scholars and scientists in the various fields of the Division has risen enormously. For these and related reasons it seemed to the editors chosen by the Divisional officers that the usual format of publishing the proceedings of the Congress be abandoned in favour of a somewhat more flexible, and hopefully acceptable, method of pre sentation. Accordingly, the work of the invited participants to the Congress has been divided into four volumes appearing in the University of Western Ontario Series in Philosophy of Science. The volumes are entitled, Logic, Foundations of Mathematics and Computability Theory, Foun dational Problems in the Special Sciences, Basic Problems in Methodol ogy and Linguistics, and Historical and Philosophical Dimensions of Logic, Methodology and Philosophy of Science.

Human Judgment and Decision Processes is a collection of papers that covers the various theoretical frameworks that relate judgment to decision making. The book is comprised of 10 chapters that cover both mathematical models involved in decision making and interpersonal aspect of judgment process. The first five chapters cover papers about decision making. The subjects of the papers include multiattribute utility measurement for social decision making; portfolio theory and the measurement of risk; and information-integration analysis of risky decision making. The other half of the text deals with the judgment process, which includes topics such as interaction of judge and informational components; judgment and decision processes in the formation and change of social attitudes; and the role of probabilistic and syllogistic reasoning in cognitive organization and social inference. The book will be of great use to psychologists involved in research on human judgment and decision process.