1. Self-concept: As a person matures, his self concept moves from one of being a dependent personality toward one of being a self-directed human being.

2. Experience: As a person matures he accumulates a growing reservoir of experience that becomes an increasing resource for learning.

3. Readiness to learn. As a person matures his readiness to learn becomes oriented increasingly to the developmental tasks of his social roles.

4. Orientation to learning. As a person matures his time perspective changes from one of postponed application of knowledge to immediacy of application, and accordingly his orientation toward learning shifts from one of subject-centeredness to one of problem centredness.

5. Motivation to learn: As a person matures the motivation to learn is internal.