How does beneatha's character most reflect the time period in which the play takes place

The answer is: yes, there is bias in the survey question.

Bias is someone allowing their personal opinions to influence their judgement in an unfair way. By constructing the question this manner, the writer is employing others words to say "students don't pay attention in class" ,While this might be his personal opinion, it will induce the people answering the survey.