Free practice · single-choice · hard
Practice
Choose bounded causal language
An observational comparison finds that users of a new checklist had fewer errors, but assignment was not controlled. Which wording is best?
Causal evidence ladder
Timing is necessary, but alternatives still need testing
- ObserveDescribe the outcome
- SequenceCause must come first
- MechanismExplain the pathway
- CompareUse equivalent cases
- AlternativesMeasure other changes
- BoundUse evidence-sized language
A causal interpretation grows stronger when sequence, mechanism, fair comparison, repeated evidence, and competing explanations agree.