Think · 10 min
Matrix Reasoning Test
Twenty drawn three-by-three matrices in five families, each named by the attribute the grid moves. Raw accuracy by family and by difficulty, never an IQ score.
AtlasThink
Reasoning practice
Reasoning practice without an IQ claim
Six practice sets: drawn matrices, number sequences, figure rotation, drawn search arrays, vocabulary by word relation, spot the fallacy. Twenty items each, no IQ claim.
- 6routes
- 4–10 mintypical length
- 20 questionsper route
- Reservedadvertising
What these tests can and cannot tell you
These are six practice sets of twenty items each, one skill apiece, reporting raw accuracy by rule family and by difficulty tier. Three of them are drawn rather than typed: three-by-three matrices grouped by the attribute the grid moves, asymmetric figures to turn and to reflect with a mirror image always among the options, and search arrays of up to forty-five figures where every distractor shares one of the target's two features. The other three are typed — twenty number sequences across five families, twenty vocabulary items across four word relations, and twenty short arguments to name the fallacy in. None of them is timed and none of them produces an IQ number. They are the warm-up shelf for the long-form IQ tests and the place where the critical-thinking guides hand off.
Start here
6 complete routes
Think · 4 min
Number Sequence Test
Twenty sequences across five families: constant steps, repeated multiplication, terms built from earlier terms, two runs interleaved, and square numbers. Raw accuracy by family, with no population percentile.
Think · 10 min
Spatial Rotation Test
Twenty drawn asymmetric figures to turn and to reflect, across five transformations. A mirror image sits among the options of every item; the result is accuracy by transformation.
Think · 9 min
Visual Search Test
Twenty drawn search arrays of 15 to 45 figures, where every distractor shares the target's shape or its fill. Untimed: difficulty comes from density and similarity, and the result is accuracy by task.
Think · 8 min
English Vocabulary Test
Twenty English words across four relations—plain definition, the word a sentence needs, a choice between near synonyms, and a word read from its parts. Raw accuracy, never a vocabulary size.
Think · 8 min
Spot the Fallacy Test
Twenty original short arguments, each committing one named fallacy. Pick the fallacy and see accuracy by family: relevance, presumption, and structure or cause.
Read first
3 guides that explain the numbers
Critical thinking · 9 min read
Twenty logical fallacies, with the sentence that gives each away
What a fallacy is, twenty common fallacies of relevance, presumption and structure with an example each, and a three-question method for spotting them in real sentences.
Critical thinking · 8 min read
Fifteen cognitive biases and the moments they show up
How a bias differs from a fallacy, fifteen biases grouped by what they distort, the situations that trigger each, and the debiasing habits with evidence behind them.
Critical thinking · 12 min read
Which psychological tests may be reproduced, and which may not
Sixteen named instruments, the licence sentence each one rests on, three ways an unlicensed copy looks legitimate, and what copying actually tracks.
How to use these results
Look for a pattern worth testing in real life. Do not use a result to diagnose yourself, prove intelligence, or make a hiring decision. Each route links its source and scoring method.