If psychology can be defined as the science of behavior and the mind, why are the data in psychology always drawn from behavior?

If psychology can be defined as the science of behavior and the mind, why are the data in psychology always drawn from behavior?

A. behavior can be influenced by physiology and the mind cannot
B. behavior can be influenced by the environment and the mind cannot
C. behavior can be observed and the mind cannot
D. All of above

If psychologists discovered that wealthy people are less satisfied with their marriages than poor people are, this would indicate that wealth and martial satisfaction are ____________?

If psychologists discovered that wealthy people are less satisfied with their marriages than poor people are, this would indicate that wealth and martial satisfaction are ____________?

A. casually related
B. negatively correlated
C. independent variables
D. dependent variables
E. None of these