Wikipedia
Gnosology
In philosophy, gnosology literally means the study of gnosis, meaning knowledge or esoteric knowledge. Gnosology has also been used to render Johann Gottlieb Fichte's term for his own version of transcendental idealism, Wissenschaftslehre, meaning "Doctrine of Knowledge".
In cognitive psychology, gnosology refers to the attempt to objectively access the experience of another's firsthand knowledge.