The gate-control theory of pain states that the experience of pain depends, in part, on whether pain impulses get past a neurological "gate."

Why do behaviorists focus on external factors as keys to understanding development?

What will be an ideal response?

Developing physical skill in middle childhood may have an effect on social relations. For example, jumping a ramp on a skateboard or hanging by a knee from a tree may help children

A) impress peers. B) establish their position in peer groups. C) develop a sense of accomplishment. D) all of the above.