This special issue of "Thinking and Reasoning" is devoted to social judgement theory SJT, which has its origins in Egon Brunswik's probabilistic functionalism.; The first paper discusses the history and theory of SJT and explores Hammond's distinction between coherence and correspondence criteria. The next paper presents the major methodological approaches of SJT, with a focus on the Lens Model. Four applications follow, including an exploration of the medical applications of SJT.

This volume brings together classic key concepts and innovative theoretical ideas in the psychology of judgment and decision-making in social contexts. The chapters of the first section address the basic psychological processes underlying judgment and decision-making. The guiding question is "What information comes to mind and how is it transformed?" The second section poses the question of how social judgments and decisions are to be evaluated. The chapters in this section present new quantitative models that help separate various forms of accuracy and bias. The third section shows how judgments and decisions are shaped by ecological constraints. These chapters show how many seemingly complex configurations of social information are tractable by relatively simple statistical heuristics. The fourth section explores the relevance of research on judgment and decision making for specific tasks of personal or social relevance. These chapters explore how individuals can efficiently select mates, form and maintain friendship alliances, judiciously integrate their attitudes with those of a group, and help shape policies that are rational and morally sound. The book is intended as an essential resource for senior undergraduates, postgraduates, researchers, and practitioners.

The volume begins with a historical overview of the self in social judgment and outlines the major issues. Subsequent chapters, all written by leading experts in their respective areas, identify and elaborate four major themes regarding the self in social judgment: · the role of the self as an information source for evaluating others, or what has been called 'social projection' · the assumption of personal superiority as reflected in the pervasive tendency for people to view their characteristics more favorably than those of others · the role of the self as a comparison standard from or toward which other people's behaviors and attributes are assimilated or contrasted · the relative weight people place on the individual and collective selves in defining their attributes and comparing them to those of other people

There are four basic goals for research in SJT (Social Judgment Theory): - to analyze judgment tasks and judgmental processes; - to analyze the relations between judgmental systems (i.e. to analyze agreement and its structure), and between tasks and judgmental systems (i.e. to analyze achievement and its structure; - to understand how relations between judgmental systems and between judgmental systems and tasks come to be whatever they are (i.e. to understand processes of communication and learning and their effects upon achievement and agreement); - to find means of improving the relation between judgmental systems (improving agreement) and between judgmental systems and tasks (improving achievement).

The results of collaborative research on attitudes and attitude change in terms of basic findings and principles from laboratory studies of judgment in general and of assimilation-contrast effects in particular.

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.