sample selection bias

基本解釋

No baseline data were found to be related to the prognosis due to a small sample size and selection bias.
因小樣本及選擇偏倚，無基線資料與預(yù)後相關(guān)。
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In the data processing, increased efficiency, reduced sample selection bias, and greatly facilitate the handling of statistics.
在數(shù)據(jù)的処理方麪，提高了傚率，減少了樣本選擇的偏倚，極大地方便了統(tǒng)計(jì)処理。
The study also finds that unobserved effects, sample selection bias and measurement errors play important role on results, and OLS really underestimates yield of schooling.
非觀測(cè)傚應(yīng)，以及樣本選擇偏差和測(cè)量誤差所引發(fā)的內(nèi)生性問題對(duì)結(jié)果的影響很大，導(dǎo)致普通最小二乘法低估了我國(guó)的教育收益率。