Constructivism focuses on individuals rather than interactions. It tries to account for why people make the certain communicative choices.
Constructs are the basis of constructivism.
They are dimensions of judgment and can be thought of as filters, files, templates, or interpretive schemas. They are domain specific, almost exclusively focusing on interpersonal message variations. Constructivist research uses the Role Category Question to find constructs embedded in free response writing, often about a person the writer likes and a person the writer dislikes. The more constructs a person uses the more cognitively differentiated they are. Cognitive differentiation is a subset of cognitive complexity, which measures the organization, quantity, and level of abstractness of the constructs a person holds about another person.