Madelyn Null created the update Update 5 - Zone of Proximal Development.

Madelyn Null commented on an update Update 1 - Language Instinct in EPSY 408 SU21.

Madelyn Null created the update Positive Reinforcement.

Madelyn Null created the update Chimpanzee Learning - Update 3.

Madelyn Null commented on an update Update 1 : Operant Conditioning & Positive Reinforcement in EPSY 408 SU21.

Madelyn Null created the update Update 2 - IQ Tests????????.

Madelyn Null created the update Update 1 - Language Instinct.