Discussion student response
A need is a force that motivates or compels an individual to act in a particular way or acquire an object for satisfaction. As the first student explains, there are basic needs for survival that are common to all humans. However, there are differences in the intensity of needs, which may be determined by the necessity, or whether it is a cultural, intellectual, or social need. Demand means asking with authority, may because you claim ownership. Demand may also imply a willingness to incur whatever cost.
Although the first student is right in the definition of need and demand, there is no elaborate explanation of the importance of an understanding of the difference between the two terminologies. The core importance of differentiating the difference between needs and demands may not be because you will need a procedure in a hospital, but perhaps because you cannot survive without needs. For example, it is impossible to survive without food. The student is right about demanding plastic surgery because you can afford it. However, the critical difference between demands and a need is because, in demand, you are exercising authority. The second student only defines need and demand and elaborates with examples. The student does not state any importance in differentiating between need and demand.
The first student is right about the causal theory, understanding the cause of a problem or a reason for an action. The student is also right about the impact theory but shows little knowledge about the theory. It is about the results of an intervention. The causal theory is about what makes something relevant. However, the student only defines intervention. The second student elaborates on the causal theory, which shows a broad understanding of the topic under discussion. Similarly, the student shows extensive knowledge concerning the intervention theory and impact theory.