Aresearcher believes girls are more preoccupied with the way they dress than boys. due to this assumption, he focuses only on girls and their interactions with their friends, neglecting how boys present themselves to others. this is an example of:

This is an example of selective observation

Explanation:

What is meant by selective observation?

Selective observation is an observation where we tend to focus our attention to a phenomenon that support our own concluded ideas.

In selective observation when we collect data it is based on what we have already concluded like a researcher above has concluded based on what he believes about girls that they obsess more over their dressing code but now he neglects that even boys do obsess about how they present themselves to others which includes how they dress up hence his observation is now selective ; selecting only girls to make his observations.

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explanation: