Bing is of chinese descent. when he first attended his high school in sacramento, his classmates asked him if he knew kung fu, the chinese martial arts. they were surprised when bing told them that he had no knowledge of kung fu. bing's classmates' notion of him represents

Bing's classmates' notion of him represents a prejudice.

A prejudice is a belief or preconceived idea about a person just because of his/her membership to a group.  In the case, Bing pertains to the group "inmigrants with Chinese origin", hence students quickly linked him to martial arts, which are also related to this human group where they have embodied Bing.

Sometimes prejudices arise just because a person apparently pertains to a group. It could have been the case that Bing had both Chinese name and physical features but had been born in the US, and his parents too. Hence, they might be not inmigrants anymore but prejudices have made the others think so.

A prejudice is a belief or preconceived idea about a person just because of their membership to a group.  In this case, Bing pertains to the group "inmigrants with Chinese origin", hence students quickly linked him to martial arts, which are also related to this human group where they have embodied Bing.

Sometimes prejudices arise just because a person apparently pertains to a group. It could have been the case that Bing had both Chinese name and physical features but had been born in the US, and his parents too. Hence, they might be not inmigrants anymore but prejudices have made the others think so.

Explanation:

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

answer; when one group has an extremely high score at pretest;