According to Piaget's theory, children in the preoperational stage are capable of representational thought, but in general are incapable of logical thinking.

If one monozygotic twin suffers from a disease known to have a genetic component, such as schizophrenia, the other twin will develop the disease, too

Indicate whether this statement is true or false.

What is the key characteristic of the Type A personality that is related to heart disease?

a. Working hard b. Impatience c. Hostility d. Having high standards