Question

A researcher is asking his participants to report elements of their experience as they taste a new soda. participants need to report their immediate sensations, images, and feelings. participants are being asked to take part in _____.

Answer 1

Answer is: participants are being asked to take part in introspection.
Introspection (from Latin introspicere, “to look within”) is the examination of one's own conscious thoughts (in this research sensations and images), mental state and feelings. Introspection is path to internal self-awareness.