A person passes the Watson-Glaser critical thinking test by successfully answering a number of questions based on deduction, inference, argument analysis and other areas of critical thought. If he knows what type of questions to expect ahead of time and practices with preparatory tests, his chances of passing improve. Candidates who avoid rushing and who take the time to consider each question carefully are more likely to do well.

The Watson-Glaser test has five sections with questions that cover different aspects of critical thinking. These sections include assumptions, deductions, analyzing arguments, inferences and interpreting information. It is recommended that prospects take as much time as needed to think through each question. Time is not a factor, which makes rushing unnecessary. The focus is squarely on answering questions to the best of one's abilities. Watson-Glaser practice tests are offered at various sites online.

To test assumption skills, an assumption is made in the form of a statement. Candidates are provided with several assumptions about a topic. They have to decide if the assumptions ring true. In the deduction section, a statement is followed by several conclusions. The test taker has to decide if the conclusions, or deductions, follow the basic premise of the statement.

Topical arguments are presented for analysis. The test taker has to gauge the strength and relevance of each argument. In the section about inference, test takers must decide if a statement is true of false based on the stated facts.

To test interpretation skill, candidates read a paragraph of information followed by several conclusions. They then decide if the conclusions are supportive of the information or based on interpretation.