underpredict

The models may underpredict warming; we may also be underestimating the risk of collision with an asteroid or meteor.

Weitzman on Global Warming, Arnold Kling | EconLog | Library of Economics and Liberty 2009

"People know outside is going to feel much better for them but underpredict how happy they're going to feel after being outside in nature even 15 minutes," she says.

Psychologists determine what it means to think 'green' 2008

But historical models will underpredict the black vote, and I'd wager that every poll is doing just that.

Zogby: Obama's Lead In North Carolina Shrinks, Indiana A Dead Heat 2009

If they trained the model assuming that pre-1944 hurricanes were undercounted by 3 back in the days pre-AGW, when it was all “natural”, why would the model underpredict hurricanes?

YTD Hurricane Activity « Climate Audit 2007

Note that estimates after ca. 1970 tend to underpredict actual values calibration ar2 declines from 42% for 1909–1950 to 38% for 1909–70 and 23.2% for 1909–2001.

Post-1980 Proxies #2: Alaskan Tree Rings « Climate Audit 2005

And consider also that the generic-ballot question has tended to underpredict actual

Dawn's early Light - A Townhall.com user blog 2010

For instance, if you underpredict every below-average country by 50% of the difference, and you overpredict every above-average country by 50% of the difference, you'll get a perfect correlation, but really crappy guesses.

Sabermetric Research Phil Birnbaum 2010

If those numbers hold, and if they turn out to underpredict Republican performance in the popular vote, as they have in the past, that could mean that Republicans would win a popular vote plurality or majority in the North.

Latest Articles 2010

Based on research by the University of Nebraska, he says it is more costly to underpredict your yields than to overpredict.

unknown title 2009

The models of the melting of the ice sheets that are the basis for the Intergovernmental Panel on Climate Change's predictions for the rise in sea level underpredict the actual rates of sea level rise between 1993-2006 by 40\%.

Green Car Congress 2009