APPARENT BIAS: WHAT DOES ATTITUDE POLARIZATION SHOW?
许多实验发现，持不同意见的群体在接触相同证据后态度可能极化。本文论证，在贝叶斯无偏见的群体中，极化恰恰是预期结果，而非信息处理偏差的证据。
Abstract Many, though not all, experiments have found that exposing groups of subjects who disagree to the same evidence may cause their initial attitudes to strengthen and move further apart, or polarize. Some have concluded that findings of attitude polarization show that people process information in a biased manner so as to support their initial views. We argue that, on the contrary, polarization is often what we should expect to find in an unbiased Bayesian population, in the context of experiments that find polarization.