Critical Reasoning Test

Ace Logical Reasoning: Test-Prep Practice Questions

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Logical Reasoning Practice Questions

Welcome to our comprehensive collection of stimulus-style practice questions! These questions are designed to sharpen your critical thinking, logical reasoning, and analytical skills. These abilities are crucial for success in many standardized tests. Our carefully crafted questions mirror the format found in prestigious exams like the LSAT, GMAT, and GRE, as well as in many other exams.

Each question presents a brief “stimulus” – a short paragraph containing an argument, scenario, or set of facts – followed by a question and multiple-choice answers. These exercises will challenge you to analyze complex information, identify logical flaws, draw valid conclusions, and evaluate arguments.

 

1. All mammals are warm-blooded. All dogs are mammals. Which of the following conclusions can be drawn from these premises?
All warm-blooded animals are mammals
All dogs are warm-blooded
Some warm-blooded animals are not dogs
No cold-blooded animals are dogs
2. A pharmaceutical company claims that its new drug is more effective than existing treatments for a certain condition. In a clinical trial, 70% of patients who took the new drug showed improvement, compared to 60% who took a placebo. Which of the following, if true, would most weaken the company's claim?
The clinical trial had a small sample size
Some patients experienced side effects from the new drug
Existing treatments have a success rate of 75%
The improvement was measured over a short period of time
3. A city proposes building a new sports stadium to boost the local economy. Which of the following, if true, would most weaken this proposal?
The stadium will create new jobs in the area
Similar projects in other cities have failed to provide the expected economic benefits
Local sports fans are excited about the prospect of a new stadium
The stadium will be partially funded by private investors
4. A study found that people who drink moderate amounts of red wine have a lower risk of heart disease than those who don't drink alcohol. Therefore, drinking red wine is good for heart health. Which of the following best describes the flaw in this reasoning?
It assumes correlation implies causation
It ignores potential negative effects of alcohol consumption
It fails to consider other dietary factors
It doesn't define "moderate amounts" clearly
5. Researcher- Studies show that people who eat breakfast regularly have lower rates of obesity. Therefore, eating breakfast regularly causes weight loss. Which of the following best describes the logical flaw in this argument?
It assumes correlation implies causation
It relies on a small sample size
It ignores potential confounding variables
It uses circular reasoning
6. A study shows that people who drink green tea daily have a lower risk of heart disease. The researchers conclude that drinking green tea prevents heart disease. Which of the following, if true, would most weaken this conclusion?
Green tea contains antioxidants known to improve heart health
People who drink green tea tend to have healthier lifestyles overall
The study was conducted over a 10-year period
Participants in the study were all over 50 years old
7. A politician argues: "My opponent's tax plan will hurt the middle class. Anyone who supports this plan clearly doesn't care about hardworking Americans." This argument commits which of the following fallacies?
Ad hominem
Straw man
False dichotomy
Appeal to emotion
8. If a metal is heated, it expands. This metal has not expanded. Therefore:
The metal was heated
The metal was not heated
The metal may or may not have been heated
The metal contracted
9. If a student studies hard, they will pass the exam. Sarah passed the exam. Which of the following can be logically concluded?
Sarah studied hard
Sarah did not study hard
Sarah may or may not have studied hard
Sarah cheated on the exam
10. A company found that employees who use standing desks report less back pain. The company concludes that standing desks reduce back pain. Which of the following, if true, would most strengthen this conclusion?
Employees who use standing desks tend to take more breaks
Standing desk users report improved posture
Employees with pre-existing back pain are less likely to use standing desks
Standing desk users engage in more physical activity outside of work
Questions Answered: 0/10

 

 

These questions assess critical thinking, logical reasoning, and analytical skills. Here’s a list of some exams that typically include such questions:

LSAT (Law School Admission Test)
GMAT (Graduate Management Admission Test)
GRE (Graduate Record Examinations)
MCAT (Medical College Admission Test)
SAT (Scholastic Assessment Test)
ACT (American College Testing)
Critical Thinking Assessment Test (CAT)
Watson-Glaser Critical Thinking Appraisal
California Critical Thinking Skills Test (CCTST)
CLA+ (Collegiate Learning Assessment)
California Bar Exam’s performance test section
Certain civil service exams
Some corporate hiring assessments

These exams use stimulus-based questions to evaluate a candidate’s ability to analyze information, identify logical flaws, draw valid conclusions, and evaluate arguments. The questions present a short paragraph or scenario followed by a question and multiple-choice answers.