HarryHarlow's research with infant monkeys was concerned with the development of

Research has demonstrated that effective trainers tailor the style of the instruction to fit the trainee, have a solid understanding of how people learn, and:

A) withhold feedback until training has been completed. B) have trainees hold questions until the end of training. C) use massed practice. D) establish specific learning objectives.

The part of the brain that shrinks more with age than do other parts of the brain is the

amygdala. cerebellum. prefrontal cortex. hypothalamus.