Quiz Other
Critical Thinking: Assumptions
IMAT-style reasoning without copyrighted questions.
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Question 1
A school says: 'Students who sleep eight hours score higher, so sleep causes higher scores.' Which assumption is most important?
- The higher scores are not mainly caused by another factor linked to sleep
- Every student takes the same bus
- No student studies biology
- Scores cannot be measured
Question 2
If all applicants who pass the interview have completed chemistry, and Mira passed the interview, what follows?
- Mira completed chemistry
- Mira received the highest score
- Everyone who completed chemistry passed
- Mira did not apply
Question 3
A conclusion is weakened most directly by evidence that does what?
- Makes the conclusion less likely while keeping the premises relevant
- Uses a longer sentence
- Repeats the conclusion exactly
- Changes the topic entirely
Question 4
Which statement is a necessary condition for graduating from a program if the rule is 'Only students who pass anatomy graduate'?
- Passing anatomy
- Graduating
- Winning a scholarship
- Taking physics twice
Question 5
A sufficient condition is best described as what?
- A condition that, if present, guarantees the result
- A condition that is always irrelevant
- A condition that must be absent
- A condition that can never be observed
Question 6
An argument from a sample is strongest when the sample is what?
- Representative of the population being discussed
- Chosen only from one extreme case
- Small and hidden
- Collected after the conclusion is announced
Question 7
Which flaw appears in: 'This treatment helped one patient, so it will help all patients'?
- Overgeneralization from insufficient evidence
- Valid deductive proof
- Definition by genus and difference
- Correct use of a control group
Question 8
If a claim is 'No mammals are cold-blooded,' which observation would refute it?
- One mammal that is cold-blooded
- One bird that is warm-blooded
- A fish with scales
- A reptile that lays eggs
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