Answer:
benefits; costs
Explanation:
The theory of social exchange proposes that all relationships are formed, maintained, or broken due to a cost-benefit analysis. It leads us to make comparisons of alternatives raised and, finally, to opt for those relationships that offer us a greater benefit at a lower cost.
This theory has been highly valued among behaviorist paradigms in that it can be quantified and measured for its simplicity. Over time, and with the emergence of cognitive and constructivist paradigms, it became obsolete.
Population is the right answer
Answer:
They are conductin a comparative study.
Explanation:
Comparative research is a methodology used to compare results accross different populations. In this case, Brad and Greg have chosen two different countries, United States and Ireland, in order to compare results and verify if Piaget's theory can be generalized and taken as universal. Comparative research allows researchers to analize variables that vary from one culture to another and that are a result of social and cultural environments that corresond to a specific time and space.
D.) countries forcefully take territory from neighbors, this should be correct :)