What it measures
Mental rotation and manipulation of shapes: what an object looks like turned, folded or seen from another side.
Your score is read against adults generally. The bands below come from the shape of a normal distribution, which is the model the scoring assumes rather than a count from a reference sample. Most people sit in the middle and both ends are rare by definition, so a band is a position in a distribution, not a verdict.
Good uses
- A check on the ability that engineering and design work leans on.
- Practice before a real selection or admissions test.
- Seeing where you sit relative to adults generally.
Known limits
- It covers one narrow ability, so it is not a general measure of intelligence.
- An unsupervised online test is not a clinical assessment and is not an IQ certificate.
- Tiredness, interruptions and previous practice all move the score.
Other tests
Covering similar ground: Abstract Reasoning.