Because she believes that boys are naughtier than girls, mrs. zumpano, a second-grade teacher, watches boys more closely than she watches girls for any signs of misbehavior. mrs. zumpano's surveillance strategy best illustrates.

The answer is confirmation bias.

Explanation:

Confirmation bias occurs when a person looks for information to confirm or favour a prior belief. It also takes place when a person interprets unclear data as supporting their own position.

This bias can result in poor decisions, as the person only considers the information that is convenient for them, rather than taking a neutral posture.

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