Our method

The IQ scale

Scores use the usual IQ scale: 100 is average, and about two out of three people score between 85 and 115. Each 15 points above or below 100 is one step further from average. Your percentile is the share of people who would score lower than you.

The skills we measure

• Pattern recognition: finding the rule behind shapes and sequences.
• Numerical reasoning: series, gaps, ratios and quick mental arithmetic.
• Logical reasoning: working out what must be true from a few facts.
• Spatial reasoning: turning and flipping shapes in your mind.
• Verbal reasoning: word analogies, opposites and categories, all based on meaning.
• Abstract reasoning: discovering hidden rules in symbols, with no words or knowledge needed.
• Working memory: remembering what you just saw and using it a moment later.
• Processing speed: spotting the right answer quickly and accurately.

How questions are made

All our questions are original. Each puzzle design follows a clear rule, and a program checks every question before it is used: there must be exactly one correct answer and four different options. Members get a different set of questions every day.

Each test moves from Easy to Moderate to Hard questions, so everyone can start comfortably and strong thinkers are still challenged.

How your score is calculated

• Which questions you get right matters, not just how many. Harder questions count more.
• A small allowance is made for lucky guesses, so a few guesses don't inflate your score.
• Every score comes with a likely range that shows how precise it is.
• In the Academy, a test where answers were tapped faster than anyone could read them, with mostly wrong results, doesn't count.

Your Academy IQ

For members, each day is its own IQ test made of 8 short skill tests. When all 8 are done, that day gets its own IQ. Your Academy IQ is built from all your finished days: recent days count more than older ones, and a small allowance is made for getting used to the question types. The skills are combined similar to how many IQ tests combine their parts: reasoning skills count a little more, and being strong across many skills counts more than being strong in one. The more days you finish, the smaller the ± range becomes. Unfinished days stay open and count once they are finished.

EQ tests

EQ tests show everyday situations with four possible responses. Each response is scored from 0 to 3 points depending on how well it handles the situation, and your result is shown out of 100.

What our scores are, and what they aren't

Our results are estimates for practice and self-reflection. They are not a clinical or diagnostic test, and they should not be used for medical, school or job decisions. As more people take our tests, we will keep improving how scores are calibrated.