Watson Glaser Practice Test: Free Sample Questions & Tips (2026)

Last updated: 29 September 2026 | Trusted by thousands worldwide.

Hadassah, Cognitive Test Developer at JobTestPrep

The Watson Glaser test, also known as the Watson Glaser Critical Thinking Appraisal (WGCTA), assesses candidates’ critical thinking and reasoning skills. It's a widely-used pre-employment test and a crucial requirement for candidates applying for a variety of roles, including legal training contracts and government legal services roles.

The Watson Glaser test is a 40-question, 30-minute psychometric test and it evaluates five key areas: Drawing conclusions, evaluating arguments, recognising assumptions, making deductions, and interpreting information.

Here, you can take a free timed Watson Glaser practice test or continue to read on to explore 15 sample questions with full answers, explanations, and expert tips for tackling each section effectively.

Free Watson Glaser Practice Questions

Each section below includes a sample question, tips, and full answers explaining the reasoning behind each correct answer, covering all 5 sections of the Watson Glaser Test.

To learn more about Watson Glaser, scoring, and which companies rely on it, visit our Watson Glaser test guide.

watson glaser test overview

1. Assessment of Inferences

We'll begin our Watson Glaser practice test with the first section, Assessment of Inferences. An inference is a conclusion based on evidence.

Each exercise begins with a statement of facts you are to regard as true. Afterwards, you'll find several possible inferences or conclusions that can be drawn from the stated facts. Your job is to evaluate the truthfulness of the inference based on the text, using the following range:

  • True
  • Probably True
  • Insufficient Data
  • Probably False
  • False

You'll need to examine each inference separately and decide its degree of truth or falsity.

What does it assess? The ability to assess the probability that inferences are true based on the information provided.

The Inference section will present a statement and a series of inferences (conclusions).

Your task is to determine how true or false each inference is.

Read the text below and select the correct answer:

James is a human rights activist who was fined £60 on three different days during the past month for smoking in public at his workplace. On each occasion, he admitted to the act peacefully, telling policemen he was unwilling to conform to such a breach of people's right to privacy. James paid the three fines shortly after receiving them.

Statement: This year, James has spent several hundred pounds in his struggle to oppose violations of civil liberties.

Would you rate this as:

  • True
  • Probably True
  • Insufficient Data
  • Probably False
  • False

The correct answer is "Probably True".

You know that James had paid 180 pounds in the past month alone. You also know he is a human rights activist who's willing to spend money for his cause, based on his actions and testimony.

As such, even though it's not explicitly mentioned in the text, it's safe to assume that sometime in the year James had spent at least 20 more pounds on his activism, smoking-related or otherwise.


Assessment of Inferences Practice Questions

Questions one and two below are based on the following text:

Virtual employees, or employees who work from home via a computer, are an increasing trend. In the US, the number of virtual employees has increased by 39% in the last two years and 74% over the previous five years. Employing virtual workers reduces costs and makes it possible to use talented workers no matter where they're located globally. Yet, running a workplace with virtual employees might entail miscommunication and less camaraderie, and can be more time-consuming than face-to-face interaction.

Now, choose whether the questions below are true or false to varying degrees according to the text:

⭐️ Golden Tip: When evaluating inferences, the following will help:

  • Prioritise the facts given in the question
  • Use common knowledge sparingly
  • Base your assessment primarily on the evidence presented

This approach will help you accurately judge whether an inference meets the requirements for true, probably true, insufficient data, probably false, or false.

The “Probably True” and “Probably False” answer choices are unique to the Watson Glaser and are considered the main challenge of the Inference section. Grasping the distinction between common knowledge (permitted in the Inference section of the test) and other forms of knowledge (prohibited) is key to accurately answering the questions. Learn more about this tip in our Watson Glaser Inference guide.

     Get our Watson Glaser PrepPack for more.


2. Recognition of Assumptions

The next section is Recognition of Assumptions. An assumption is something presupposed or taken for granted.

In this section, you'll encounter a statement followed by a proposed assumption. Your task is to determine whether the statement implies the proposed assumption, treating it as true without needing to justify it. Keep in mind that these assumptions don’t have to be logical or accurate. The key is simply determining whether the assumption is present, not whether it's reasonable.

Most candidates consider the Recognition of Assumptions section the most challenging section of the Watson-Glaser test.

What does it assess? The ability to identify whether assumptions are needed to support a given statement.

The Assumptions section will present a statement followed by a proposed assumption.

Your task is to decide whether a person making the given statement is making the proposed assumption.

Read the text below and select the correct answer:

Complaints were raised against the town's sole French teacher for using her monopoly to charge more than her late predecessor. However, she does not earn more money on each lesson than she would have before, because she lives out of town and her fee reflects higher transportation costs than those of her predecessor, who lived in town.

Statement: Service providers who spend more on transportation are more expensive.

Would you rate this as:

  • Assumption Made
  • Assumption Not Made

The correct answer is "Assumption Not Made".

This is a generalisation of what happened in the town. The statement is a logical rule - it refers to all service providers in the world.

The author might think this is true, but he doesn't have to assume it in order for the passage to make sense. Therefore, it is not assumed.


Recognition of Assumptions Practice Questions

⭐️ Golden Tip: For each statement:

  • Select "Assumption Made" if the assumption is taken for granted in the statement
  • Select "Assumption Not Made" if the assumption is not necessarily taken for granted
  • Judge each assumption independently

The Negative Test algorithm is an extremely effective method for uncovering underlying assumptions. It’s demonstrated in the explanation in Question 1 above. Practise it until you master it!

Discover more tips in our Watson Glaser Recognition of Assumptions guide.

     Get our Watson Glaser PrepPack for more.


3. Deduction

The next section is Deduction. Assume all information provided is true.

For each conclusion:

  • Select "Conclusion Follows" if it logically follows beyond a reasonable doubt
  • Select "Conclusion Does Not Follow" if it does not

Your task is to determine whether the conclusion absolutely and necessarily follows the premise.

What does it assess? The ability to assess whether conclusions are logically derived from the provided information.

In the Deduction section, you'll be presented with a premise and a suggested conclusion.

Your task is to determine whether the conclusion ABSOLUTELY AND NECESSARILY follows the premise.

Read the text below and select the correct answer:

Some citizens pay taxes. Many citizens receive income support.

Statement: More citizens receive income support than those who pay taxes.

Would you rate this as:

  • Conclusion Follows
  • Conclusion Does Not Follow

The correct answer is "Conclusion Does Not Follow".

Let's solve this question with the safest possible method for solving deduction questions: Letter Coding.

  • Citizens = A, pay taxes = B, receive income support = C
  • According to the premises, (A+B)some and (A+C)many.
  • The conclusion states (A+C) > (A+B).

Some refers to a portion, a quantity between 1 to everything, while many refers to multiplicity, at least 2 and up to everything.

However, you have no grounds to infer an accurate quantity of either statement. Therefore, the conclusion does not necessarily follow.

This one is tricky. Although there is a hierarchy between words that indicate a quantity, and “many” is more than “some”, that is only true when discussing the same group.

For example, if the conclusion was “there are some citizens who receive income support”, it would follow, because you can infer “some” from “many”. However, you cannot compare the quantities of two different groups this way.


Deduction Practice Questions

⭐️ Golden Tip: When evaluating conclusions:

  • Rely only on the given premises
  • Set aside your general knowledge or personal beliefs
  • Avoid letting prejudices influence your judgement
  • Focus on whether each conclusion necessarily follows from the premises

The NOT Triangle (Negative, Transpose, Only) is one of the most useful methods in the Deduction section, allowing you to rephrase premises to suit the needs of a specific question.

Here’s the gist of it: You may convert a premise without changing its meaning by using TWO elements of the NOT Triangle.

For instance:

All carrots are orange.

  • (N+T): All things that are not orange are not carrots.
  • (O+T): Only orange things are carrots.
  • (O+N): Only if something is not a carrot, it is not orange.

This will help you answer these questions accurately. 

     Get our Watson Glaser PrepPack for more.


4. Interpretation

In the Interpretation section, you'll be presented with a premise followed by a suggested conclusion.

Your task is to determine whether the conclusion follows the premise beyond a reasonable doubt.

The structure of this section is pretty much the same as the Deduction section. However, the rules differ between the two sections. The Deduction section mainly relies on formal logic, while the Interpretation section is less structured, making it deceptively more challenging.

What does it assess? The ability to evaluate whether conclusions drawn from data (usually presented in a paragraph) are logically supported beyond a reasonable doubt, as opposed to data in one-to-few statements.

Here, you'll be presented with a premise followed by a suggested conclusion.

Your task is to determine if the conclusion logically follows the premise beyond a reasonable doubt.

Read the text below and select the correct answer:

In the years 2011 - 2012, 32% of pupils entitled to free school meals (an indicator of low socio-economic status) achieved five GCSE passes at grade C or above. This is compared to 65% of pupils who were not entitled to free school meals.

Statement: Most of the pupils who were not entitled to a free school meal achieved five GCSE passes at grade C or above.

Would you rate this as:

  • Conclusion Follows
  • Conclusion Does Not Follow

The correct answer is "Conclusion Follows".

The logic behind this answer is mathematical.

The passage states that 65% of the pupils who were not entitled to a free school meal achieved five GCSE passes at a minimum of a C grade. Since 65% is greater than 50%, we can conclude that they are the majority.


Interpretation Practice Questions

⭐️ Golden Tip: When evaluating conclusions:

  • Rely only on the given premises
  • Set aside your general knowledge or personal beliefs
  • Avoid letting prejudices influence your judgement
  • Focus on whether each conclusion necessarily follows from the premises

Beware of these 4 main fallacies: 

  • Reason Fallacy: Finding a reason for something that' not actually in the premise
  • Indefinite Pronoun Fallacy: Incorrectly using terms like "all" or "none" in the premise
  • Correlation-Causation Fallacy: Inferring causation where only correlation is given
  • Jumping Into Conclusions Fallacy: Adding details that are not included in the premise

These are the most common pitfalls to avoid in the Interpretation section.

     Get our Watson Glaser PrepPack for more.


5. Evaluation of Arguments

The last section is Evaluation of Arguments. You'll be provided with a yes/no question, followed by an argument. This tests your ability to distinguish between strong and weak arguments.

For an argument to be strong, it must be:

  • Important to the issue
  • Directly related to the question

An argument is weak if it:

  • Is not directly related to the question
  • Is of minor importance
  • Relates only to trivial aspects of the question

What does it assess? The ability to assess the validity and strength of arguments in relation to a specific question or issue.

In the Arguments section, you'll be presented with a yes/no question, followed by an argument.

Your task is to determine whether the argument is strong or weak in answering the question.

Read the text below and select the correct answer:

Should parents put their children in preparation courses for gifted tests, in order for them to reach their full potential?

Statement: Yes. Parents are responsible for their children’s future and should do whatever they can to help them succeed in life.

Would you rate this as:

  • Strong Argument
  • Weak Argument

The correct answer is "Weak Argument".

This argument, although of great general importance, is not directly related to the question. The question specifically asked about preparation courses for gifted tests, and the arguments do not even mention them.

If, for example, the argument made the connection between preparation courses and job success itself, the argument would have been strong. Since it does not, it is weak.


Evaluation Of Arguments Practice Questions

⭐️ Golden Tip: The Arguments Evaluation section tests your decision-making about importance and relevance:

  • Focus on information that directly influences the scenario's outcome
  • Prioritise relevant data over peripheral information
  • Not all information carries equal weight
  • Critically evaluate each argument based on its impact on the conclusion

The most common mistake in the Arguments section is letting one's own views and opinions affect one's judgement. Remember to ignore your own views. Additionally, it's important to remember that an argument is weak if it's not directly relevant to the question, if it's of little significance, or if it only addresses minor details.

It's also essential to "remove the fluff" - only then will you be able to see an argument for what it actually states.

Let’s take the example from above:

  • No, employees are likely to use the free time to clean their homes, run errands, and meet with friends, and thus bring no benefit to the company whatsoever.

Will turn to:

  • No, free time for employees will not bring any benefit to the company.

It's now easier to see that this argument is both relevant to the topic and touches on the main issue, which was somewhat clouded with all the “fluff” about the ways employees can spend their free time.

     Get our Watson Glaser PrepPack for more.


Watson Glaser Assessment Sample Questions With Solutions (Video)

Prepare With Our Adaptive Watson Glaser PrepPack

From your very first session, the PrepPack adapts to your level and tracks your progress toward test day:

  • A Personalised Starting Point: An initial assessment pinpoints your current level, so every session that follows is built around your own strengths and gaps.
  • Real-Time Adaptivity: Difficulty adjusts as you go, shifting into detailed explanations the moment a knowledge gap appears.
  • A Relative Score: See exactly how you compare to other candidates preparing for the same test, not just whether you got a question right.
  • Full Test-Day Simulation: Full-length simulations in a realistic, timed environment, with explanations that sharpen as your test date approaches.

The result is a study plan that gets sharper every time you practise.


Tips

Watson Glaser Practice Test FAQs

The Watson Glaser test is challenging because it focuses on subtle reasoning rather than factual knowledge, requiring careful reading and logical analysis. A Watson Glaser practice test helps you get used to distinguishing between similar answer choices, avoiding common traps, and applying consistent reasoning under timed conditions.


The single most effective thing you can do is work through practice questions with full explanations, not just answers.

Each of the five sections has its own internal logic. For example, Deduction rewards strict certainty, while Inference rewards probabilistic judgement, and getting the two confused is the most common mistake candidates make.

The fastest way to learn which is which is by studying worked reasoning like the Letter Coding and Negative Test methods used throughout this page, rather than just checking whether you got a question right. From there, move to full-length, timed simulations to build the speed and pressure-handling the real test demands.

Our PrepPack is built around exactly that progression - diagnostic, adaptive practice, then full simulation.


A Watson Glaser practice test is an important part of preparation because it familiarises you with the question types and reasoning required. However, effective preparation also involves reviewing explanations, understanding common pitfalls, and practising each section to strengthen your overall critical thinking ability.


Your Watson Glaser test score is calculated based on your performance in various test sections, each assessing different aspects of critical thinking.

Scores are often compared against a norm group of previous test takers to gauge your relative performance, and it is known that the larger the number of applicants, the higher the score requirements become.

Most competitive employers look for a score in the 80th percentile or above, around 33 - 34 correct answers out of 40. This benchmark can shift depending on the specific role, the volume of applicants, and which version of the test you take.

Our PrepPack explains how to interpret your results in each section and how they might impact your chances in the selection process for competitive training contracts.


The Watson Glaser Critical Thinking Test is generally known as one of the more difficult assessment tests provided for candidates. To rank in the top 80% for the most desirable positions, like managers and lawyers, it's recommended to get a Watson Glaser exam score of at least 33 - 34. Head to our Watson Glaser test guide page to learn more about the test structure, scoring, and more.


The Watson Glaser test is used by a number of leading UK law firms as part of their recruitment process, including Allen & Overy, Clifford Chance, CMS, Dentons, Freshfields Bruckhaus Deringer, Herbert Smith, Hogan Lovells, Linklaters, Norton Rose Fulbright, and Slaughter & May.


The Watson Glaser test takes 30 minutes to complete. In that time, candidates must answer 40 multiple-choice questions across five sections: Inferences, Assumptions, Deduction, Interpretation, and Evaluation of Arguments.


Why Trust JobTestPrep?

Founded in 1992 by David Meshulam, JobTestPrep has over thirty years of experience helping candidates navigate competitive recruitment processes, including thousands preparing for the Watson Glaser test. We have over 220 preparation courses, expert-developed and regularly updated to reflect the latest test formats, and have supported over one million candidates worldwide with their job test prep. We also offer advanced AI-driven technologies, including our CV Analyser and Interview Prep platform. Together, these resources help candidates across the UK and beyond strengthen their applications, improve their performance, and achieve outstanding results.

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