The head of the department of state, and traditionally a key advisor to the president on foreign policy.
True because country roads may be more rough than city roads. City roads are usually smooth.
Answer:
Human factor psychology
Explanation:
Human factor psychology is a scientific discipline that studies human behavior and capabilities. This is the best to explain human behavior to design safety equipment. The human factor faculty work in a different area of psychology such as research. This area includes
- The human basic performance
- The human-computer interaction
- The aviation psychology
Thus Ted conduct a study that was based on the human factor in psychology