2. Argument Analysis

Hidden Assumptions — Quiz

Test your understanding of hidden assumptions with 5 practice questions.

Practice Questions

Question 1

Which hidden assumption underlies the expert endorsement argument: 'Supplement X is endorsed by 95% of dieticians; therefore, Supplement X improves health.'?

Question 2

City A banned private cars and experienced a 15% reduction in traffic congestion. City B has a similar urban layout; therefore, banning cars in City B will reduce congestion. Which hidden assumption is required for this inference to be valid?

Question 3

In evaluating the argument: 'Free product samples led to a 25% increase in sales; thus, free sampling causes sales growth,' which follow-up question best tests the hidden assumption?

Question 4

Following a publicity push, annual festival attendance doubled. Therefore, the publicity campaign doubled attendance. Which hidden assumption supports this conclusion?

Question 5

Which assumption in the argument 'If inventory levels drop, demand must have increased' is helpful for explaining the drop but not strictly necessary for the conclusion?