# Cognitive Bias Lab > An interactive educational platform for learning about cognitive biases — the systematic patterns in human thinking that affect judgment, decisions, and perception. Covers 30 biases across 5 categories, with visual simulations, quizzes, flip-card practice, and a role-play debiasing tool. Freely accessible at https://www.cognitivebiaslab.com ## Core Pages - [Home](https://www.cognitivebiaslab.com/): Overview of cognitive biases and featured content - [All Biases](https://www.cognitivebiaslab.com/biases/): Full catalogue of all 30 cognitive biases with search and filtering - [Categories](https://www.cognitivebiaslab.com/categories/): Biases grouped by category — Decision-Making, Memory, Perceptual, Reasoning, Social - [Learn](https://www.cognitivebiaslab.com/learn/): Structured learning path through cognitive biases - [Bias Network](https://www.cognitivebiaslab.com/network/): Interactive graph showing relationships between biases - [About](https://www.cognitivebiaslab.com/about/): About the project and its educational mission - [Sitemap](https://www.cognitivebiaslab.com/sitemap-page/): Full HTML sitemap ## Practice & Assessment - [Quiz](https://www.cognitivebiaslab.com/quiz/): Test your knowledge of cognitive biases - [Flip Cards](https://www.cognitivebiaslab.com/practice/flipcards/): Spaced-repetition style flash cards for each bias - [Matching Game](https://www.cognitivebiaslab.com/practice/match/): Match bias names to their descriptions - [Practice Test](https://www.cognitivebiaslab.com/practice/test/): Scenario-based multiple-choice questions - [Role-Play Debiasing](https://www.cognitivebiaslab.com/practice/role-play-debias/): AI-assisted conversations to practice identifying and countering biases in realistic scenarios - [Simulations](https://www.cognitivebiaslab.com/bias-study-simulations/): Interactive visual simulations of individual biases ## Decision-Making Biases - [Survivorship Bias](https://www.cognitivebiaslab.com/bias/bias-survivorship/): Focusing only on successes while overlooking failures that are no longer visible - [Confirmation Bias](https://www.cognitivebiaslab.com/bias/bias-confirmation/): Seeking information that confirms existing beliefs while ignoring contradicting evidence - [Availability Heuristic](https://www.cognitivebiaslab.com/bias/bias-availability/): Judging probability by how easily examples come to mind - [Sunk Cost Fallacy](https://www.cognitivebiaslab.com/bias/bias-sunk-cost/): Continuing a failing course of action due to prior investments of time, money, or effort - [Status Quo Bias](https://www.cognitivebiaslab.com/bias/bias-status-quo/): Preferring the current state of affairs and resisting change - [Anchoring Bias](https://www.cognitivebiaslab.com/bias/bias-anchoring/): Over-relying on the first piece of information encountered when making decisions ## Social Biases - [Self-Serving Bias](https://www.cognitivebiaslab.com/bias/bias-self-serving/): Attributing successes to oneself and failures to external factors - [In-Group Bias](https://www.cognitivebiaslab.com/bias/bias-in-group/): Favouring members of one's own group over outsiders - [False Consensus Effect](https://www.cognitivebiaslab.com/bias/bias-false-consensus/): Overestimating how many others share your beliefs and behaviours - [Halo Effect](https://www.cognitivebiaslab.com/bias/bias-halo-effect/): Letting a positive impression in one area influence overall judgment - [Fundamental Attribution Error](https://www.cognitivebiaslab.com/bias/bias-fundamental-attribution/): Over-attributing others' behaviour to character rather than situation - [Bandwagon Effect](https://www.cognitivebiaslab.com/bias/bias-bandwagon/): Adopting beliefs or behaviours because many others do ## Memory Biases - [Recency Effect](https://www.cognitivebiaslab.com/bias/bias-recency-effect/): Better recall of the most recently encountered information - [Hindsight Bias](https://www.cognitivebiaslab.com/bias/bias-hindsight/): Believing, after the fact, that an outcome was predictable all along - [False Memory Bias](https://www.cognitivebiaslab.com/bias/bias-false-memory/): Recalling events that did not happen or distorting memories of real events - [Rosy Retrospection](https://www.cognitivebiaslab.com/bias/bias-rosy-retrospection/): Remembering past events more positively than they actually were - [Context Effect](https://www.cognitivebiaslab.com/bias/bias-context-effect/): How environmental context influences memory retrieval and perception - [Primacy Effect](https://www.cognitivebiaslab.com/bias/bias-primacy-effect/): Better recall of items at the beginning of a list or sequence ## Reasoning Biases - [Planning Fallacy](https://www.cognitivebiaslab.com/bias/bias-planning-fallacy/): Underestimating the time, cost, and risk of future actions while overestimating benefits - [Gambler's Fallacy](https://www.cognitivebiaslab.com/bias/bias-gamblers-fallacy/): Believing past random events influence future independent ones - [Base Rate Fallacy](https://www.cognitivebiaslab.com/bias/bias-base-rate/): Ignoring general statistical likelihood in favour of specific information - [Belief Bias](https://www.cognitivebiaslab.com/bias/bias-belief/): Evaluating the strength of an argument based on whether its conclusion seems believable - [Dunning–Kruger Effect](https://www.cognitivebiaslab.com/bias/bias-dunning-kruger/): Overestimating one's competence in areas where knowledge is limited - [Backfire Effect](https://www.cognitivebiaslab.com/bias/bias-backfire-effect/): Strengthening a belief when presented with contradicting evidence ## Perceptual Biases - [Illusory Correlation](https://www.cognitivebiaslab.com/bias/bias-illusory-correlation/): Perceiving a relationship between variables where none exists - [Negativity Bias](https://www.cognitivebiaslab.com/bias/bias-negativity/): Giving greater weight to negative experiences than equally intense positive ones - [Attentional Bias](https://www.cognitivebiaslab.com/bias/bias-attentional/): Focusing on emotionally relevant stimuli while ignoring others - [Framing Effect](https://www.cognitivebiaslab.com/bias/bias-framing/): Being influenced by how information is presented rather than its substance - [Selective Perception](https://www.cognitivebiaslab.com/bias/bias-selective-perception/): Filtering information based on personal expectations and experiences - [Blind Spot Bias](https://www.cognitivebiaslab.com/bias/bias-blindspot/): Recognising cognitive biases in others while failing to see them in oneself ## Blog - [Cognitive Reflection Test: Quick Guide + Interactive Simulation](https://www.cognitivebiaslab.com/blog/cognitive-reflection-test/): An introduction to the CRT and what it reveals about intuitive vs. analytical thinking - [The Best Resources for Learning About Cognitive Biases in 2025](https://www.cognitivebiaslab.com/blog/best-resources-learning-cognitive-biases/): Curated books, courses, and tools for deepening your understanding of cognitive biases ## Full Content - [llms-full.txt](https://www.cognitivebiaslab.com/llms-full.txt): Complete inline content for all 30 biases — definitions, full descriptions, examples, and mitigation strategies — in a single file. Suitable for LLMs that want to index all content without crawling individual pages. ## Optional - [Pre-Mortem Tool](https://www.cognitivebiaslab.com/pre-mortem/): A structured decision-making exercise to anticipate project failures before they happen - [Search](https://www.cognitivebiaslab.com/search/): Full-text search across all biases and content - [Contact](https://www.cognitivebiaslab.com/contact/): Get in touch with the team - [Privacy Policy](https://www.cognitivebiaslab.com/privacy/): How user data is handled - [Terms of Service](https://www.cognitivebiaslab.com/terms/): Terms governing use of the platform