underprediction

Such systematic underprediction is the classic, technical definition of test bias.

College Board vs. FairTest 2010

Similarly, the underprediction of low-level and mid-level clouds presumably affects the magnitude of the radiative response to climate warming in the widespread regions of subsidence.

The "First" Assessed Likely Range for Climate Sensitivity « Climate Audit 2007

Critics blame sophisticated test biases for this underprediction.

Failing at FAIRNESS Myra David Sadker 2003

Each year the SAT misleads with an optimistic forecast of future male performance in college and an underprediction of the grades to be earned by women.

Failing at FAIRNESS Myra David Sadker 2003

Each year the SAT misleads with an optimistic forecast of future male performance in college and an underprediction of the grades to be earned by women.

Failing at FAIRNESS Myra David Sadker 2003

Critics blame sophisticated test biases for this underprediction.

Failing at FAIRNESS Myra David Sadker 2003

Each year the SAT misleads with an optimistic forecast of future male performance in college and an underprediction of the grades to be earned by women.

Failing at FAIRNESS Myra David Sadker 2003

Critics blame sophisticated test biases for this underprediction.

Failing at FAIRNESS Myra David Sadker 2003

EL, your cite as I read it says that the IEA projections are based on "business as usual" scenarios, not build potential, and that that is the explanation for their consistent underprediction of wind capacity.

RealClimate 2009