Over-Sampled, Not Over-Represented
03.27.08 -- 1:45PM
By David Kurtz
Just a quick update on the oversampling of African-American voters in that NBC/WSJ poll, which Josh mentioned last night.
The pollster has released a memo explaining, as we suspected, that while blacks were oversampled to be able to get a statistically reliable subgroup for answers to questions specific to black voters, the horse race numbers were corrected for this oversampling and did not over-represent blacks.
Carry on.
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