| Table of Contents | ||
|---|---|---|
|
...
For subsequent rounds of testing, a common question is “Do we need to get fresh participants, or should we use people who have already done an earlier test?”
...
If we’re concerned about re-using participants, we can also add a survey question to the second test, asking if they participated in the first test. Later, during analysis, we can filter the results to see if the “veterans” did significantly better than the first-timers. We suspect the difference (if any) would be small enough to ignore.
...
Next: When are we done?