It's an acceptable stereotype to make a generalization from.

人们可以接受用这个刻板印象来以一概全。

心理学导论课程节选 : 耶鲁公开课

And to the extent these portray an unrealistic or unfair or biased perception of the world we could construct stereotypes that are faithful to the data we're getting but the data is not representative.

因为媒体,没有真实，公平，不偏不倚地反映世界,我们的刻板印象,就会根据这些信息来形成,但这些信息并不能以一概全。

心理学导论课程节选 : 耶鲁公开课