Behavioral & Public Health confusion pairs
3 Behavioral & Public Health topics students commonly mix up on Step 2 CK, each with the fastest separator, a side-by-side comparison, and a free practice question.
Step 2 CK pairs are in open beta while clinical review finishes. Spot an issue? Tell us.
- Capacity vs CompetenceCapacity is determined by the treating clinician at bedside for one decision, while competence is determined by court order.
- Sensitivity vs Specificity vs PPV vs NPVChanging prevalence alters PPV and NPV but does not alter sensitivity and specificity when the test threshold is unchanged.
- Informed consent vs Surrogate decision makingDemonstrated decision-making capacity is the single branch point between direct consent and surrogate consent.