When we categorize individuals and attribute a set of qualities to them because of their membership in that category, what perceptual process are we using?

The correct answer to the following question will be "Standardizing".

Explanation:

Standardizing anything is making it conform to a given standard or necessity. We will be using the standardize word to explain what such an agency or corporation is doing when an item or regulation is conforming to a specific model. Standardizing everything is often about making it essential that same.

Therefore, it's the right answer.