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10 minutes
10 minutes
MENTAL TRAPS
A Cognitive Bias Crash Course
Our free, interactive tools and mini-courses make it fun and easy to improve your life by helping you apply powerful insights from cognitive science, mathematics and economics.
Scientists have discovered a slew of systematic errors in human thought. Learn about a few of the mind's mistakes in this brief introduction.
This brief tool is designed to give you a clearer sense of how you rate your own reasoning chops – and how your confidence compares to others'.
Get a free custom report that will help you make important decisions based on the value of your time, like whether to take on extra part-time work or hire your own help.
8 minutes
Learn which of 16 reasoning styles you use, your overall level of rationality, and what you can do now to improve your rationality skills.
15 minutes
Separate fact from B.S. in this fun quiz that asks you to identify the misconceptions among 30 common beliefs.
Facing a challenging, complex, or emotionally-charged decision? Try this tool for organizing your thoughts and weighing your options numerically.
12 minutes
Are your guesses truly independent? Or is it possible that you're being manipulated by irrelevant information without your knowledge?
Learn to make the most of your charitable contributions with this detailed and informative guide.
2+ minutes
Brighten your disposition fast with scientifically-tested exercises that can improve your mood and dispel the blues.
15 minutes
Learn to spot and overcome your political biases and test your policy knowledge with this fun, free quiz.
35 minutes
There is more to interpreting evidence than you might think. Learn to improve your predictions by understanding evidence on a deeper level using Bayes' rule.
15 minutes
Learn a skill recommended by positive psychology to increase satisfaction and deepen your happiness. Lift your spirits and create lasting positive feelings!
50 minutes
When we have invested heavily in a project, it can be difficult to evaluate it objectively. Learn about why this happens and how to combat it.
4 minutes
See if you can guess which social
interventions had a positive effect, a negative effect, or no effect, based on a short description.
12 minutes
Take this test to get a personalized set of activities that can support you in adding fulfillment and meaning to your life.
50 minutes
Ever notice that projects usually take longer than people predict? Understand the science behind this phenomenon and become a more reliable planner.
11 minutes
Our beliefs determine our behavior and how we interact with others. Use this program to refine your beliefs and form truer views.
20 minutes
Develop strategies for improving important areas of your life. Use this tool to become happier and to more easily achieve your long-term goals.
25 minutes
Bad arguments are all around us. Train yourself to instantly detect common reasoning errors that often go unnoticed.
25 minutes
Learning from mistakes is challenging. Try our approach and you can rebound from your mistakes and carry on as an even more awesome person.
30 minutes
This goal achievement tool was created by a world expert and is powered by many of the most significant discoveries from the science of motivation.
30 minutes
Take our test to get a customized report on your strengths and weaknesses as a potential startup founder. Learn if you have the traits and skills you need to succeed!
2+ minutes
30 minutes
Sometimes our first explanation is not our best explanation. Learn a simple trick for improving your predictions.
10 minutes
Learn the mathematical rule that governs the way statisticians and scientists handle evidence.
Watch the recent presidential primary debates with subtitles that point out fallacious claims and tactics.