Diagrammatic Reasoning Tests (Explained by an Expert)

Diagrammatic reasoning testsDiagrammatic Reasoning Tests are very similar in nature to other psychometric tests which assess your logical reasoning skills.

They are frequently used in a number of technical roles, such as engineering, IT or Management.

The activities are used to evaluate your ability to synthesise data and solve problems logically.

Would you like to take a free practice Diagrammatic Reasoning Test? To take one now, click here.

What Do Diagrammatic Reasoning Tests Measure?

Applicants are sometimes required to sit a diagrammatic reasoning test in combination with other assessments such as numerical and verbal reasoning. Some organisations are using the diagrammatic reasoning test as a measure of your actual ability in the workplace.

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The tests are diverse and can be vastly different from the average psychometric test, which can be rehearsed and practised until you are completely familiar with the content.

Diagrammatic reasoning often presents something unexpected so is a more accurate way of assessing your natural aptitude for problem solving.

Diagrammatic Reasoning: What Is Involved?

Although just one of many psychometric tests, diagrammatic reasoning makes use of diagrams such as a series of images with very few words or numerical data. You can see an example below.

Diagrammatic Reasoning test example
An Example question take from a Diagrammatic Reasoning test

Created to challenge candidates, the test will determine your capacity to assess a situation, identify logical sequences and apply them in a given scenario to solve a problem.

These skills are fundamental in a number of career sectors and roles, so it is important that you are able to demonstrate your skills at interview or at an assessment centre.

Jobs which require you to think and act quickly, such as customer service or front line roles, will require the skills tested in the diagrammatic reasoning test.

Typically diagrammatic reasoning tests will provide you with a set of problems or questions but rather than giving you a set of potential written answers you will instead have a group of shapes and several options for the answer.

It is your task to review the information that you have available (the diagrams) and reach the most logical conclusion.

Are Diagrammatic Reasoning Tests Hard?

It is very difficult to practice for these tests, because certain roles will demand varying levels of conceptual reasoning skills.

Each diagrammatical reasoning test will be specifically tailored to the requirements of the post you are applying for, so there is potential for significant variation from test to test.

Nevertheless it is possible to prepare substantially beforehand, so that when you enter the test the questions are not too daunting.

Factors That Can Affect Performance

You should be aware that there are a number of factors which can impact upon performance in these tests including your own working memory, your age, ability and your capacity for processing and retaining information.

This often makes it even more important to prepare as much as you can before attempting the real test at interview stage.

There are a number of websites where you can practice psychometric tests for free.

Practice helps you mentally prepare yourself if you’re applying to an organisation that frequently uses psychometric testing as part of the recruitment process.

The Content of a Diagrammatic Reasoning Test

If you are asked to complete a diagrammatic reasoning test the format is usually the same regardless of the organisation you are applying to.

At the start of the test you will be presented with some visual information based on diagrams and flowcharts. This information then needs to be carefully analysed before reaching a conclusion to determine the rules that the diagram follows.

The final step is to apply these rules that you have identified to answer the diagrammatic reasoning questions.

How to Pass Diagrammatic Reasoning Tests

Practice is the key to tackling psychometric tests, particularly when it comes to the more difficult variants like diagrammatic reasoning.

Although it is more difficult to prepare for this assessment than some of the other logical, numerical and verbal reasoning tests, it is recommended that you at least try one diagrammatic reasoning practice test before your actual assessment at the selection stage.

Not only will you be able to familiarise yourself with the structure of these tests, you will become accustomed to working quickly and accurately while remaining calm and collected.

A relaxed state of mind is crucial to succeeding at these assessments.

With a little online research you should be able to find a diagrammatic reasoning test for your career sector and level.

It is important to be conscious of the level you are hoping to join the organisation at, so that you can select the most appropriate reasoning test; they vary in complexity according to individual roles and seniority.

5 Tips for a Diagrammatic Reasoning Test

Tips for passing diagrammatic reasoning tests

5 top tips for passing your diagrammatic reasoning test

Tip #1: Find Out the Name of the Test Organisation

What makes diagrammatic reasoning tests difficult is that the content is so diverse; no two tests are the same. If you can find out the name of the organisation who have prepared the test you can look for online psychometric tests from this supplier.

Tip #2: Take Your Time and Finish Logically

It can be tempting to race through the diagrammatic reasoning test so you finish on time. It is strongly advised that you take your time and approach the test logically.

Rushing through too quickly may result in misinterpreting the question or unintentionally providing the wrong answer.

Diagrammatic reasoning tests are perhaps one of the most difficult kinds of assessment, so it is crucial that you approach them with confidence.

Review the diagrams carefully and read the question thoroughly so that you know what is being asked of you.

Tip #3: Take Notes

Taking notes can help significantly during these tests. In particular take note of processes or functions which may be connected.

Write down your thoughts as you progress through and refer back to them further in the test.

You have to strike a balance between writing notes and answering questions; you don’t want to spend so much time writing and checking notes that you run out of time to complete the remaining questions.

Tip #4: Time Management Is Crucial

As with all psychometric tests, effective time management is really important. Being able to recognise when you can’t just reach an answer on a question and having the foresight to move on is a skill that you need to learn through practice.

You will only be able to identify which questions you may struggle with by completing diagrammatic reasoning practice tests.

Try not to spend too long on one question; you can always come back to it if you have time at the end.

Tip #5: Practice

Those who succeed in the diagrammatic reasoning tests will take time to prepare and practice.

You can find practice tests here, but look for ones relevant to the job and level you’re applying for.

Not only will you be able to progress through the questions at an increased pace, it won’t be as much of a challenge if you’re asked to complete a diagrammatic reasoning test during the recruitment process.

Further Reading

We hope you’ve enjoyed reading our guide to diagrammatic reasoning tests, and that our 5 tops tips have put your mind at ease.

For those looking for more information, be sure to check out the Diagrammatic Reasoning Test Tips video from Assessment Centre HQ below. In it, they run through a series of example questions that, making sure you have a better idea of what to expect.

Need more practice? Try practice tests from JobTestPrep.


  1. Geralyn

    You’ve created a great bunch of articles!

    1. Edward Mellett


  2. Shady

    A well organized, prepared article. Keep up the excellent work

  3. Anthony Ross

    Excellent resource and it helps.

  4. Yunusa Babatunde

    Youe explanation is easy to understand. Thanks

    1. Edward Mellett

      Thanks, and good luck!

  5. Yunusa Babatunde

    Youe explanation is easy to understand. Thanks bobby

  6. Andrew

    very helpful!

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