The Brain of Australopithecus Afarensis Was Almost the Same Size

question 24

True/False

The brain of Australopithecus afarensis was almost the same size as that of modern humans.

---

Definitions:

Negative Reinforcer

Any unpleasant stimulus that, when removed after a response, strengthens the response, making it more likely to occur in the future.

Immediate Reinforcement

The provision of a reward directly following a desired behavior to strengthen its occurrence.

Fixed-interval Schedule

A reinforcement schedule where a reward is given for the first response after a predetermined time period has passed.

Conditioned Reinforcers

Stimuli that acquire their reinforcing power through association with primary reinforcers, playing a role in shaping behavior.