Our Collection of Cognitive Bias Tests
Explore your thinking patterns with our scientifically-inspired psychology tests
Dunning-Kruger Effect Test
Explore the fascinating relationship between confidence and competence. This test reveals how we often overestimate our abilities in areas where we know the least, based on the groundbreaking research by David Dunning and Justin Kruger.
Confirmation Bias Test
Do you seek information that confirms your existing beliefs? This interactive test examines how we naturally gravitate toward evidence that supports our preconceptions while avoiding contradictory information.
Anchoring Effect Test
Discover how the first piece of information you receive influences all subsequent judgments. This classic psychology test demonstrates the powerful and often unconscious impact of initial impressions on decision-making.
Survivorship Bias Test
Learn why focusing only on success stories can be dangerously misleading. Based on a famous WWII aircraft problem, this test reveals how we systematically overlook crucial missing data and failure cases.
Availability Heuristic Test
Why do we fear shark attacks more than falling coconuts? This test explores how easily recalled memories and vivid media coverage distort our perception of risk and probability in everyday life.
Sunk Cost Fallacy Test
Are past investments controlling your future decisions? Discover whether you hold on to failing projects, relationships, or stocks simply because of what you've already put in.
Hindsight Bias Test
Do you always feel like you "knew it all along"? This test reveals how we unconsciously rewrite history in our minds after learning the outcome of events.
Optimism Bias Test
Do you think bad things are less likely to happen to you than to others? Explore how we systematically overestimate positive outcomes and underestimate risks in our own lives.
Framing Effect Test
Does the way information is presented change your decisions? See how identical facts framed differently can lead you to completely opposite conclusions.
Understanding Your Cognitive Biases
These tests are designed to help you recognize patterns in your thinking. Remember, having cognitive biases is completely normal – they're built into how our brains work. The goal is awareness, not perfection.
Want to learn more about the science behind these biases?
Explore the Bias Index