Whenever six-year-old Aaron gets upset, he begins to cry and suck his thumb. Aaron is using which defense mechanism?

The ______ is an insulating material that covers the axon and allows the electrical signals to travel at greater speeds

a. synapse b. action potential c. dendrite d. myelin sheath

Self-distraction:

a. is never an effective coping strategy. b. is the coping preference of people who have poor problem solving skills. c. is sometimes an effective coping strategy. d. is more typical of men’s coping.

A ________ explanation describes an attribute of something in terms of what it does.

A. mechanistic B. functional C. descriptive D. mechanical

Overlapping-waves theory emphasizes that ________.

A. children should be discouraged from experimenting with less mature problem-solving strategies B. children will gradually select their problem-solving strategies on the basis of two criteria: flexibility and ease C. trying many problem-solving strategies is vital for developing new, more effective solution techniques D. in early childhood, children's brains are capable of considering only one problem-solving strategy at a time.