undersample

It tends to undersample those who are out and about, and has a particularly large effect in robopolls, where many respondents hang up when they're busy.

Obama Closing On Hillary In Another National Poll 2009

So did the previous poll oversample Dem/Dem leaners, does this one undersample them, or did party ID really change that much in fairly boring month?

Poll: National Race Tightens; Majority Says Obama Flip-Flopped On Key Issues 2009

This procedure will oversample people in areas of low population density and undersample people in areas of high population density by its very nature.

The Lancet Study of Iraqi Deaths 2005

October 31, 2004 at 11:43 AM actus, those Fox tracking polls severely undersample Republicans and men on Friday and Saturday.

This is Priceless 2004

A useful two-step approach is to first undersample a high density of markers to identify individuals with informative recombination breakpoints and then acquire additional sequences for these individuals.

PLoS ONE Alerts: New Articles 2008

A useful two-step approach is to first undersample a high density of markers to identify individuals with informative recombination breakpoints and then acquire additional sequences for these individuals.

PLoS ONE Alerts: New Articles 2008

Still a weekend poll, which tends to undersample Republicans / conservatives.

Latest Articles 2008

In most instances, polls oversample Democrats and undersample Republicans.

The Colorado Index Civil Sense 2008

Since Ras fixes party weights, the undersample effect is miniscule.

Latest Articles 2008

A useful two-step approach is to first undersample a high density of markers to identify individuals with informative recombination breakpoints and then acquire additional sequences for these individuals.

PLoS ONE Alerts: New Articles Nathan A. Baird et al. 2008