introspectionism

This brought late 19th century scientists to conclude that psychology must build on introspection; thus introspectionism was born.

In psychology, behaviorism developed as a reaction to the inadequacies of introspectionism.

They consider behaviorist reaction to Wilhelm Wundt's introspectionism in psychology to be merely a legitimation of these cultural attitudes.

In the United States, behaviorism arose in opposition to introspectionism and associated reaction-time research, and turned the focus of psychological research entirely to learning theory.