Relationships · Paired categorical outcomes
McNemar’s Test
For the same people measured twice, which direction of binary change is more common?
Page 1 of 7 · Big Picture
The big picture: McNemar’s Test
Which direction of change is more common in paired binary responses?
Why a policy analyst should care
When the same people provide two binary responses, the policy evidence comes from who changed in each direction; treating the responses as independent loses that transition information.
Follow the idea from the opening question to a practical decision. These are the conceptual moves this module will develop:
1 Question Did the binary outcome change within the same units?
2 Explore Read the paired 2×2 table
3 Formalize Compare the two directions of change
4 Transfer Audit the matching and design
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