Cognitive reflection

Type the answer the wording supports, not the one that arrives first.

Example

Example

Unscored example

An area doubles each step. It is full at step 6. When was it half full?

123456

An example to explore. No score or practice round is recorded.

7 questions · No time limit

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The first answer is usually wrong

Read each question. Notice the answer that arrives at once. Test it against the wording before you type.

Help

Read the question. Notice the answer that arrives at once. Write the two quantities down. Check them against the wording. Then type your number and choose Check.

Every answer is a number. The unit is shown beside the box, so type the number only. If your answer is the fast wrong one, the page says so. The check is shown either way.

Finish all seven questions to save a result in this browser. An unfinished set is not saved. Active time counts answering and reading, but not background tabs. It does not change your result.

Type digits into the answer box. Enter checks your answer, and Enter again moves to the next question. Escape ends the set.

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Cognitive reflection

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About this practice

Seven questions in the style of the cognitive reflection test.

This is practice. It is not a personality test and not an intelligence test. It reports two numbers: how many of the seven you got right, and how many wrong answers were the fast one.

There is no time limit. Speed does not change your result. The clock on this page only records how long you spent.

There are no levels. Every set has all six kinds of question.

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Check the fast answer

Type the answer the wording supports, not the one that arrives first.

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