QUESTION TEXT: Teachers should not do anything to cause their students to
QUESTION TYPE: Sufficient Assumption
CONCLUSION: Teachers shouldn’t pretend to know answers when they don’t.
REASONING: Students can sense if you are hiding your ignorance. And you should try to avoid losing the respect of your students.
ANALYSIS: This argument is missing a connection between “students sense ignorance” and “lose respect”. Here’s the full thing drawn out with the gap filled:
Pretend → students sense → lose respect
Since teachers should avoid losing respect, that means they should avoid pretending. If we didn’t have “students sense → lose respect” then we’d have no reason to think pretending had negative consequences.
___________
- This adds a new element, effectiveness. It doesn’t help prove the original conclusion.
- The stimulus wasn’t saying you should try to gain respect. It’s saying you should avoid doing something that might lose respect.
- This supports the argument by showing that teachers can be honest without losing respect. But it doesn’t prove the argument.
- That’s nice – teachers can feel respected. But this doesn’t prove anything about whether teachers should lie.
- CORRECT. See the analysis above. This fills the gap in the argument.
More Resources for Sufficient Assumption Questions
- Conditional Reasoning Article: Learn about conditional statements.
- LR Diagrams Guide: Learn how to draw LR diagrams.
- Intro to Conditional Reasoning: Learn conditional reasoning basics.
- Intro Course lesson: This intro course lesson covers Sufficient Assumption questions.
- Mastery Seminar lesson: This LR Mastery seminar lesson covers sufficient assumption questions.

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