Jeffrey's model

Jeffrey's model, developed by psychologist Peter Jeffrey, explains how people update their beliefs when they receive new information. It emphasizes that individuals combine prior beliefs with new evidence in a weighted manner, where the weight depends on the confidence or reliability of each source. This process produces a revised belief that accounts for both previous knowledge and current data, aligning with Bayesian principles. In essence, Jeffrey’s model describes a rational way for how we refine our understanding as we encounter new evidence, balancing past beliefs and new information to arrive at a more accurate view.