Ten logic questions, ten minutes — find out how tight your reasoning really is
LogicTest writes the questions with AI and tells you why each option is right or wrong. Whatever you get wrong goes into a review list you can practise until it sticks.
Practise by topic
Fact, Opinion, and InferenceThe Law of IdentityThe Law of Non-ContradictionThe Law of Excluded MiddleDeduction, Induction, and AnalogyClaim, Evidence, and the Link Between ThemSufficient and Necessary ConditionsSyllogismDeductive Closure: From Opinion to Action PlanCompeting HypothesesThe Four Pitfalls of InductionThe Five-Step Induction MethodCorrelation and CausationRoot Cause and the Causal ChainSix-Step Causal AnalysisSecond-Order ThinkingPerverse IncentivesThe Pyramid PrincipleStructured Communication and SCQARed Herring and Straw ManAd Hominem and Appeals to MotiveAppeals to Authority, Popularity, and TraditionFalse DilemmaThe Slippery SlopeReasoning by Analogy: A Four-Step MethodSpotting a False AnalogyMeans and EndsA Checklist for Big Decisions
One page per topic: what it is, the common mistakes and how to handle them, and what the questions test. The questions are drawn from a ten-part course on reasoning and set in real situations — status reports, decisions, arguments at home. New questions are added regularly.