Research participants who carefully observe and report their immediate thoughts and feelings in response to different musical sounds are using the method known as

A) critical thinking.
B) psychoanalysis.
C) introspection.
D) natural selection.

Introspection

The examination of one's own conscious thoughts and feelings, often as a method in psychological research to understand mental states and processes.

Critical Thinking

The disciplined mental process of actively analyzing, synthesizing, and evaluating information to reach conclusions or solve problems.

Musical Sounds

Sounds that are pleasant and harmonious, structured in a way to produce rhythms, melodies, or harmonies that are considered music.