[mikehearn]

> "It doesn't account for... what sort of issues the person was having on that day specifically"

I'm not clear on what you are suggesting here. Are you saying they should contact people multiple times to make sure they weren't having a bad day the first time around?

2-3 days is common because any longer than that and the survey results will no longer be reflective of a specific point in time.

Also, if you check their crosstabs they have breakdowns for gender and age.