Philip E. Tetlock is a prominent American psychologist and professor known for his work in political psychology, decision-making, and forecasting. He is a professor at the University of Pennsylvania, where he holds positions in the Wharton School and the Department of Psychology.
Tetlock is best known for his research on the accuracy of expert predictions and the cognitive biases that affect judgment in complex situations. He gained significant attention from his book "Expert Political Judgment: How Good Is It? How Can We Know?" (2005), which analyzed the forecasting abilities of various experts and highlighted that many are often no better than chance when predicting future events.
He also led the "Good Judgment Project," a research initiative aimed at improving forecasting skills through a blend of techniques, including structured methods for assembling diverse expert opinions and aggregating them to improve accuracy. His work emphasizes the importance of humility in forecasting and the need for a systematic approach to improve predictions.
Tetlock’s more recent work explores the psychology of belief, the limits of expertise, and how different modes of thinking can affect decision-making in various fields, including politics and economics. His contributions have had a significant impact on the understanding of how people make decisions and the factors that influence those decisions.
