The thyroid and pituitary glands are parts of the _______ system

It is important to distinguish between shared and nonshared environments when determining what type of experiences contribute to intelligence because:

A) environmental factors have more influence on intelligence than genes. B) genes have no influence on intelligence compared with the environment. C) two people who live in the same household will have some, but not all, experiences in common. D) genes and environment contribute equally to intelligence.

The idea that psychology is empirical suggests that:

a. reason and logic are primary to psychology b. conclusions should be guided by theories c. conclusions should be based on direct observation d. research should focus on underlying, internal events