How to Prepare and Pass the Watson-Glaser Test

watson glaser practice test

In the following article, we will explore one of the most challenging pre-employment tests in the UK and worldwide – the Watson Glaser test – which is most commonly used for recruitment in the legal sector.

Included are an overview of the test, its main challenges, and how to overcome them with effective practice methods. The article also features two brief introductory videos:

Video #1 – Structure, content, and practice tips

Video #2 – Step-by-step solutions to five Watson Glaser sample questions, to exemplify the rules and requirements of the test.

What Is the Watson Glaser Test?

The Watson Glaser Critical Thinking Appraisal (WGCTA) is a pre-employment test used primarily in the law industry. Some of the major employers using the test are Linklaters, Clifford Chance, Hogan Lovells, and the Government Legal Service. The test assesses your critical thinking – namely, your ability to analyse and interpret verbal information, draw conclusions, evaluate arguments, etc.

The test contains 40 questions divided into 5 sections, each one assessing a different aspect of critical thinking:

  1. Inference
  2. Recognition of Assumptions
  3. Deduction
  4. Interpretation
  5. Evaluation of Arguments

Visit the Complete Watson Glaser Test Guide for a full overview of the test sections and content, including sample questions and a free sample test.

The Watson Glaser Test Guide

Check out the following 3.5-minutes video for a complete overview of the Watson Glaser test:

What Are the Main Challenges of the Watson Glaser Test and How to Overcome Them?

The Watson Glaser test is indeed considered a difficult test, designed with very specific rules, and often requiring counterintuitive solving methods. And yet, with a good understanding of the three main challenges of the test and the ways to overcome them, you CAN improve your score and get the offers you want. Let’s see how:

Challenge #1 – A Single Trait Measured

The Watson Glaser test is aimed at assessing one thing only – your critical thinking. It does so in five different ways and being successful on all of them is the best guarantee to passing the test.

Overcoming Challenge #1 – Prepare for Test Sections as They Are

You have a test, so prepare for the test.

Learn how the Watson Glaser test questions look like, and practise that.

Once you have a grasp of the test, you can certainly construct your own practice plan using open sources. However, structured preparation plans such as JobTestPrep’s Watson Glaser Preparation Pack make it much easier, with practice material replicating the actual test’s rules and formatting.

Challenge #2 – A Unique Set of Rules

The Watson Glaser has its own set of rules, unparalleled by any other critical thinking test. For example:

  1. Generalisation equals existence
  2. “Probably True” and “Probably False” answer choices.

This makes the Watson Glaser test a unique, tailored testing experience, which requires a tailored preparation plan.

Overcoming Challenge #2 – Learn to Let Go

A major part of your preparation will be to uproot all your misconceptions about how to solve critical thinking questions and to learn how to ignore any irrelevant information. This may be the hardest part of you preparation. You will learn to go against what you believe to be true, just to get the question right. To beat your competitors, you must think like the test does and not like you do.

Want to see the test rules in action? Watch the following video, where we explain the logic behind five sample Watson Glaser questions, one of each category.

Challenge #3 – Intuition and Knowledge Will Fail You

The Watson Glaser test uses a collection of tactics to constantly elude, distract, and mislead you with near-correct answers. To avoid these pitfalls, you must understand the exact rules of the test and disregard anything else.

Up for the challenge? Try a 7-minutes free Watson Glaser sample test

Overcoming Challenge #3 – Develop Thinking Algorithms

One of the best ways to make sure you set your own beliefs and opinions aside is developing thinking algorithms – a methodical series of simple Q&As that lead you to the correct answer. For instance:

  • Evaluation of Arguments– ITDN table
  • Recognition of Assumptions – The Negative Test
  • Inference – Common Inference vs. Common Knowledge

With some focused practice, thinking algorithms will replace your intuition and personal knowledge as your main critical thinking tool.


This article was written by Shlomik Silbiger, JobTestPrep’s expert on the Watson Glaser test.
If you have any questions, contact

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