also as specification error ; omitting important variables from the model, or choosing the wrong functional form, so that the regression model will give the wrong prediction.
SPECIFICATION BIAS
Meaning of SPECIFICATION BIAS in English
Sean Woo's Finance, GIS and real estate English glossary. Английский глоссарий по ГИС(Географическая информационная система) и недвижимости Sean Woo's Finance. 2012