Answer:
c. Observational studies have both independent and dependent variables.
d. Observational studies can be used to test hypothesis.
Explanation:
Observational studies are ones in which a researcher makes observations about his thoughts and views. He observes the risk and other effects before actual test takes place. This is usually the initial phase of research where observations are made for suitability of certain things that are to be researched. There is initial feasibility test conducted to identify whether the further research process is beneficial or not.
Answer:
The most important political value for the farmers of the constitution was individual liberty.
Explanation:
- Among the main aims of the constitution that America wanted was the protection of liberty.
- The farmers of the constitution of the United States had the goal to meet the set out, main four agendas of the constitution.
- Liberty being among one of the most important aspect to protect in their constitution, they made sure that the individual was free, for it is freedom that Americans sought there before.
The answer is shaping. Shaping is normally used to train
animals, such as dogs, to perform difficult tasks; it is also a useful learning
tool for modifying behavior of human. It is a method of training by which
successive estimates toward a target behavior are protected—to test his
theories of behavioral psychology.
In the 1920s, the danger of buying stock on credit was that if the stock dropped, borrowers have to make up the difference.
When the stock dropped, basically the borrowers losing an amount of value of his assets. But since he bought the stock before the price was dropped, he had to make up the difference
The correct answer is C.
The hiking boots and the sleeping bag are two products that she bought and which are necessary for the hiking trip. On the other hand, the want is the pair of jeans, which is a product that she desired and bought, but that is not necessary or useful for the coming trip.
