Ronald is at the grocery store. he sees the girl behind him with a cart full of candy, chips, and soda, and mentally identifies her as an unhealthy person. he is using the aspect of the categorization part of the perception process

He is using the "Labeling" aspect of the categorization part of the perception process.

Labelling is portraying somebody or something in a word or short phrase.[1] For instance, depicting somebody who has infringed upon a law as a criminal. Labelling hypothesis is a hypothesis in human science which credits marking of individuals to control and distinguishing proof of degenerate conduct. It has been contended that labelling is fundamental for communication. However, the utilization of the term is frequently proposed to feature the way that the name is a depiction connected all things considered, as opposed to something characteristic for the named thing.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.

answer; inductive techniques;