Category I: generally recognized as safe and effective or not misbranded
Category II: not generally recognized as safe and effective or misbranded
Category III: insufficient data to permit classification
Answer: C. Slow-to-warm-up
Explanation: According to Thomas and Chess,there are different temperaments in children one of which is Slow-to-warm-up. Slow-to-warm-up are kids who find it hard to move with the changes of their environment,they are generally mellow,less active from birth,and might find it very difficult to adjust to new situations.
The degree to which a measure or scale truly reflects the phenomenon under study is known as v<span>alidity.</span>
