The best evidence to date shows that left-handedness is more common in males and is influenced by a single gene on the chromosome

In middle childhood we sometimes see something called “School refusal a child-motivated refusal to attend school, or difficulty remaining in class for the full day. Which of the following statements is the most accurate regarding school refusal?

a. It is always due to separation anxiety disorder. b. It may be due to high parental expectations or problems with classmates. c. It is best remedied by changing the child’s school. d. It is an irrational fear.

The tendency to solve problems using procedures or strategies that worked in the past on similar problems is called:

A) the availability heuristic. B) the anchoring effect. C) a mental set. D) the representativeness heuristic.