McNemar's Test/Examples/Political Allegiance

Example of Use of McNemar's Test

A sample of voters in an electorate are given the chance of voting for party $\text A$ or party $\text B$.

Their party allegiance is determined both before and after they have been shown a party political broadcast on behalf of each party.

After the broadcast, their allegiance is once more determined.

McNemar's test can then be used to indicate whether the proportion changing from $\text A$ to party $\text B$ is significantly different from that changing from $\text B$ to party $\text A$.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): McNemar's test
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): McNemar's test