Endpoints, effect size & uncertainty

This quiz is separate from the lesson so you can finish learning first, then test what you retained.

Lesson checkpoint

Endpoints, effect size & uncertainty checkpoint

This checkpoint tests the lesson you just completed. Passing marks it complete and unlocks the next course step.

Get every question correct to pass.

1. What does effect size describe?

The magnitude of an observed differenceThe journal impact factorThe number of referencesWhether P < 0.05

2. Why can a 50% relative reduction still represent a small absolute change?

Relative effects depend on the starting riskPercentages are always wrongAbsolute effects ignore the comparatorConfidence intervals create the baseline

3. What does a wide confidence interval usually signal?

Greater uncertainty in the effect estimateGuaranteed clinical importanceNo measurement errorA larger sample

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