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Evidence-Based Practice / Unit 6   EBP 0824 short lesson, about 20 seconds

Do the n Values Sum to N?

Captions available

The idea

Appraisal checks whether the sum of the reported n values equals the original N.

In practice

Group counts added up and compared against the number originally enrolled.

Where people slip

A discrepancy is participants lost to follow-up. It is attrition, visible in the arithmetic before it is stated anywhere in the prose.

Your place on the trail

Every lesson rests on earlier ones and opens later ones. Tap any to jump.

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