Reviewed: one independent reader; copy check clear.
comparison
comparison In historical psychology, comparison is the act of attending to two or more things in order to notice how they are alike and how they differ.
In historical psychology, comparison is the act of attending to two or more things in order to notice how they are alike and how they differ. It is described as an active search for similarity within difference, or difference within similarity, often involving attention moving back and forth between what is being compared.