Raven's Progressive Matrices

The format

You are shown a matrix, usually three by three, of abstract geometric figures. One cell is empty. Below it sit several candidate pieces, and your job is to work out which one belongs.

There is nothing to know. No vocabulary, no arithmetic, no general knowledge. The rules governing the pattern are contained entirely within the item, which is what makes the format unusual.

John C. Raven published the first version in 1938. Nearly ninety years later it remains in wide use, which is a rare thing for a psychological instrument.

What it measures, and why it mattered

Matrices target fluid reasoning specifically: identifying rules and relationships in material you have not encountered before.

That isolation is the point. Verbal and knowledge-based items necessarily reward exposure, education and language background. Strip those out and what remains is much closer to reasoning process alone.

This made Raven’s enormously influential. It became the reference measure for fluid ability, which is why newer reasoning tests are routinely validated by correlating against it rather than against something else.

The versions

Version	Intended for
Standard Progressive Matrices	General adult and adolescent use, 60 items in five sets
Coloured Progressive Matrices	Younger children and older adults
Advanced Progressive Matrices	Discriminating among high scorers, where the Standard version ceilings

The existence of the Advanced version illustrates something we cover in IQ percentiles: tests run out of discriminating power at the top, and measuring the upper tail requires purpose-built items rather than simply more of the same ones.

The culture-fair claim, honestly

Raven’s is frequently described as culture fair. Culture reduced would be more accurate.

Removing language and learned content strips out a great deal of cultural loading, and that is a genuine achievement. But performance still depends on familiarity with abstract diagrammatic conventions, on formal schooling, and on having encountered the idea of a timed test at all. Cross-cultural score differences on Raven’s are real and have never been fully explained by ability alone.

The honest framing is that it is substantially less culturally loaded than a vocabulary test, which is not the same as being neutral.

Why this test matters to ours

Our own matrix items are generated from the Sandia Matrices, an openly licensed item set released under a BSD-3 licence by Sandia Corporation. Sandia was built explicitly as a free alternative to Raven’s, and the published validation reports a correlation of r = .69 between the two, rising to approximately .93 once corrected for the reliability of both tests.

That is the accuracy figure we quote, and it is why we can quote one at all. Most free online tests cannot name their item source, let alone point to a published correlation against an established instrument. The full sourcing sits on our methodology page.

The figure describes the item set rather than our specific sixteen-question form, which is shorter and therefore carries a wider margin. We say so rather than borrowing the number wholesale.

You can try the format on our free IQ test, where four of the sixteen items are matrix reasoning.

Key takeaways

• Raven’s Progressive Matrices asks you to complete an abstract pattern with no language or learned content involved.
• John C. Raven published it in 1938 and it remains in wide use.
• It targets fluid reasoning specifically and became the benchmark other reasoning tests validate against.
• Three versions exist: Coloured, Standard and Advanced, the last for discriminating among high scorers.
• Culture reduced is more accurate than culture fair. Schooling and diagram familiarity still matter.
• The Sandia Matrices, which our matrix items come from, correlate r = .69 with Raven’s.