The differences between the main non-verbal reasoning test types, with examples and the tests that use each.
Abstract reasoning is non-verbal pattern finding with shapes. Inductive reasoning means inferring a general rule from examples and applying it. Diagrammatic reasoning applies explicit operations or symbols to shapes. The names overlap, and test publishers use them differently, so the question format matters more than the label.
| Type | What you do | Typical format | Practice |
|---|---|---|---|
| Abstract reasoning | Find the hidden rule in shapes and pick what fits | Sequences, matrices, odd-one-out | Abstract solver |
| Inductive reasoning | Infer a general rule from examples, then apply it | Series and matrices; often shape-based | Inductive solver |
| Diagrammatic reasoning | Follow operations or symbols applied to shapes | Input, operations, output | Diagrammatic solver |
| Logical and deductive reasoning | Decide what must follow from statements | Syllogisms, conditionals, scheduling | Logical solver |
| Spatial reasoning | Mentally rotate, mirror or fold shapes | Rotations, nets, 3D shapes | Spatial solver |
Publishers name their tests differently. Some call a shape-matrix test abstract, others inductive. Hudson's abstract test and Saville's diagrammatic test, for example, can look similar. Focus on what the question asks you to do.
The rule is inferred from the examples: the count rises across rows and the fill darkens down columns.
The operations are explicit: rotate, then mirror. Order matters.
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Abstract reasoning is non-verbal pattern finding with shapes. Inductive reasoning is inferring a general rule from examples. Many tests use the same shape-based questions for both.
They are close. Diagrammatic questions usually show explicit operations or symbols, while abstract questions leave the rule to be found.
It depends on the person and the test. Multi-rule matrices and fast game-based versions tend to be hardest for most people.
ReasonEra supports all of these types across 50+ tests, and accuracy varies by question type and image quality.
Practise by question format. Use Quick Verify to self-test and Tutor Explanation to learn new patterns.
Bring a question from your practice material and see the answer and the rule. You have three free trials to judge it.
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Sources and notes. On sources: the performance figures are from the benchmark ReasonEra published (30 November 2025), which no third party has verified. Worked examples were authored for this page. Errors can be reported at info@reasonera.com. ReasonEra has no ties to the publishers named.