🧩 Assumption Reasoning Quiz: Hidden Requirements

by

🧩 Analytical Reasoning · Quiz 014

An assumption is an unstated bridge the conclusion needs. Ask what must be added for the evidence to support the claim without reversing a rule or ignoring alternatives.

Learning goalIdentify unstated claims required to connect stated evidence to a conclusion.

  • 5 questions
  • Foundation
  • Explanations after finishing
Answered 0/5
FoundationRule: If a switch is on and its circuit is complete, the lamp lights. The switch is on, so the lamp will light. Which assumption is required?
Need a small nudge?

One condition in the rule has not been supplied.

UnderstandingAll submitted reports are reviewed. Report M was reviewed. Therefore, Report M was submitted. Which assumption makes this conclusion follow?
Need a small nudge?

The premise runs from submitted to reviewed; the conclusion runs backward.

ApplicationAt one museum entrance, 80% of surveyed visitors prefer later closing. The report concludes that 80% of all museum visitors prefer later closing. Which assumption is required?
Need a small nudge?

The conclusion expands from one surveyed group to all visitors.

InterpretationA team introduced a checklist, and its error rate then fell. The team concludes that the checklist caused the decline. Which assumption is needed for that causal conclusion?
Need a small nudge?

Ask whether another change could produce the same result.

ConnectionBranch X introduced a new routing checklist while similar Branch Y did not. The delivery error rate then fell at X but stayed unchanged at Y. The report concludes that the checklist caused X's improvement. Which assumption is required for this conclusion?
Need a small nudge?

Ask what else could have changed in only the branch that improved.

© 2026 The Perpetually Curious! All rights reserved.