Diagrammatic Reasoning Test Practice
Each box in the diagram does one thing to a figure. Learn what the boxes do, trace the figure through, and say what comes out.
One of the logical reasoning formats, alongside inductive reasoning, deductive reasoning and abstract reasoning.
Diagrammatic Reasoning Practice Tests
Four tests genuinely practise this format, so four are listed. Others carry "diagram" in the name but measure something else and are left off: EEI Interpreting Diagrams is map and legend reading, and the Diagrammen part of the Assessio Q1000 asks about word relationships drawn as overlapping circles.
Diagrammatic Reasoning
Trace inputs through flowchart rules to determine the correct output shape. Tests logical rule application and sequential processing.
switchChallenge (Deductive Logic)
A row of symbols is rearranged into a new order by hidden operator "codes". Work out the missing code that produces the output. Six minutes of gamified deductive logic. Mirrors the Aon smartPredict switchChallenge (scales sx).
Stroomdiagrammen (Procedural Reasoning)
Learn a legend of operations, then trace a starting figure through a chain of them and pick the figure that comes out. Ixly sells this for logistics, technical and software roles at HBO level and above.
Bridge Abstract
Not a matrix test. Worked examples show what each operator key does to a figure, then you are shown a start figure and an end figure and have to say which key did it. Working the rule out backwards is the whole task. 25 questions on one 17-minute clock. Mirrors the Bridge Abstract subtest of The Bridge Ability Suite.
What Diagrammatic Reasoning Measures
Applying rules in sequence
Every operator does one thing, but the figure passes through several. Keeping the order straight, without applying a rule twice or skipping one, is most of the difficulty.
Working backwards
Harder items give you the input and the output and hide an operator. TestGroup Bridge Abstract is built entirely on this: you see a start figure and an end figure and name the key that changed it.
Procedural thinking
Ixly says its flowchart test measures how someone understands logical rules and applies them to new problems, and sells it for logistics, technical and software roles at HBO level and above.
Question Formats
Flowcharts of operator boxes
Figures enter the diagram and pass through boxes that each apply one change. Saville Diagrammatic Analysis and Ixly Stroomdiagrammen ask which figure comes out at the end.
Find the missing operator
Worked examples show what each key does, then a start and an end figure, and you choose the key between them. This is TestGroup Bridge Abstract: 25 questions in 17 minutes.
Switch puzzles
Aon switchChallenge shows a row of symbols rearranged into a new order by hidden codes, and you pick the code that produces the output. Six minutes, gamified, and filed by Aon as deductive logic.
How to Prepare
Pin down each operator first
Before tracing anything, work out what each box does from the examples and note it in a word or two. Most errors come from misremembering an operator halfway through a chain.
Start with the simplest box
If one operator only changes colour or size, apply it first to cut the options, then deal with the rotations and reorderings.
Respect direction and order
Some operators swap positions or reverse a sequence, and two operators in a different order can give a different result. Apply them strictly in the order the arrows show.
Frequently Asked Questions
What is a diagrammatic reasoning test?
A test where symbols or figures pass through a diagram of operators, each changing them by a fixed rule. You work out the output, or the operator that produced a given output. It measures rule application in sequence and is common in technical and engineering recruitment.
How is diagrammatic reasoning different from abstract reasoning?
Abstract tests ask you to discover a rule from a pattern. Diagrammatic tests tell you the rules, as operators in a key or in worked examples, and ask you to apply them in order. That makes them closer to deduction than to a matrix test.
Is Aon switchChallenge a diagrammatic test?
In form, yes: symbols pass through codes that reorder them, and you identify the missing code. Aon calls it a deductive logic test, so it is listed on the deductive reasoning page as well.
Why does this page list only four tests?
Because only four of the tests we simulate are diagrammatic in the true sense, and we do not pad the page with tests that merely have diagram in the name. If yours is from Saville, Aon, Ixly or TestGroup, the practice here matches it.
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