I Individual Decision Making.- 1 Psychology of Risky Decisions.- Models of Risky Choice.- Contingent Processing in Risky Choice.- Task Complexity.- Information Display.- Response Modes.- Quality of Option Set.- Frameworks for Task and Context Effects.- A Production System Approach to Models of Strategy Selection inChoice.- Summary.- References.- 2 The Framing of Decisions and the Psychology of Choice.- The Evaluation of Prospects.- The Framing of Acts.- The Framing of Contingencies.- The Framing of Outcomes.- Discussion.- References.- 3 Decisional Variance.- Personality and Decision Making.- Cognitive Style and Decision Making.- Cognitive Style and the Design of Decision Support Systems (DSS).- Contingent Decision Behavior.- Decisional Style or Contingent Decision Making?: Some Useful Methodology from Personality Psychology.- References.- 4 Cognitive Approaches to Decision Making.- Developments in Cognitive Psychology.- Identification of Separate Stages.- Complex Processing Models.- Applications of the Cognitive Approach.- Decision Strategies.- Perceptual Aspects of Decision Making.- Future Developments.- Notions of Limited Capacity.- Elementary Information-Processing Stages.- Conclusion.- References.- II Small-Group Decision Making.- 5 Social Interdependence and Decision Making.- Interdependent Preferences.- Empathy and Altruism.- Envy and Social Comparison.- The General Problem.- Interdependence Structures: Changing the Rules.- Conclusion.- References.- 6 Combining Individual Judgments.- Why Groups?.- Aggregation Methods.- Mathematical Aggregation.- Estimation of Unknown Quantities.- Weighting Individual Judgments.- Discrete Probability Judgments.- Probability Density Functions for Continuous Quantities.- Evaluative Judgments and Preferences.- Aggregation of Verbal Judgments.- Behavioral Aggregation.- Group Process and the Judgment Task.- Input Variables.- Conformity.- Polarization.- Effectiveness of Behavioral Aggregation.- Mixed and Aided Aggregation.- Conclusiolc7