Classical test theory (Wikipedia)

This source backs 10 claims across the atlas. As facts: 7 well-attested. Plus 3 entities citing it as a general reference with no single fact or relationship attached.

Disposition By Topic

• Learning Theory and Concepts, 4 claims: 2 well-attested, 2 general references.
• Sources, 4 claims: 4 well-attested.
• Groups, 2 claims: 1 well-attested, 1 general references.