3 Cognitive Biases That Secretly Control Your Decisions (And How to Beat Them)

Your brain makes thousands of decisions every day — but how many of them are really yours? In this video, we explore 3 cognitive biases that secretly hijack your choices: the Halo Effect, the Anchoring Effect, and the Dunning-Kruger Effect — plus simple, science-backed ways to beat each one. 🧠 The Halo Effect: why good looks make us assume someone is smart and competent (Thorndike, 1920) ⚓ The Anchoring Effect: how one random number can drag your judgment (Tversky & Kahneman, 1974) 👑 The Dunning-Kruger Effect: why the people who know the least often feel the most confident (Kruger & Dunning, 1999) Which of these three biases do you catch yourself falling for? Tell us in the comments 👇 🔔 Subscribe to Why People Think for a new research-based psychology video every week. References: • Thorndike, E. L. (1920). A constant error in psychological ratings. Journal of Applied Psychology, 4(1), 25–29. • Tversky, A., & Kahneman, D. (1974). Judgment under uncertainty: Heuristics and biases. Science, 185(4157), 1124–1131. • Kruger, J., & Dunning, D. (1999). Unskilled and unaware of it. Journal of Personality and Social Psychology, 77(6), 1121–1134. This video is educational and entertainment content based on published psychology research. It is not medical advice and does not diagnose or treat any condition. Chapters: 0:00 Your Brain Is Taking Shortcuts 1:04 The Halo Effect 1:59 The Halo Effect at Work (And How to Beat It) 2:37 The Anchoring Effect 3:21 The Wheel of Fortune Experiment 4:33 The Dunning-Kruger Effect 5:17 Why the Least Skilled Feel the Most Confident 6:23 Catch Your Brain in the Act