The most efficient way is to make one person pack food and the other deliecering the food.
I believe the answer is: valid, but not reliable
A result would be considered as valid if it is created by using proper logical thought or common way of reasoning. But, such result on personality would not be considered to be reliable because there are too many factors that could create a deviation within the data, and there is no accurate way to truly measure personality.
The first blank would be strengthening and the second blank is weakening. Negative reinforcement can increase the child's behavior because your negative reinforcement conditions him that it is ok to do such thing. While positive punishment is disregarded when the person practices negative reinforcement,
<span>France Allied with American Colonies</span>
"race" without the quotation marks is your answer.
