Purpose of a sociological research
The main purpose of conducting a sociological research/study is to investigate and provide knowledge and insights in the way human society functions ( Carr, Boyle & Cornwell, 2018) , as the researcher starts to think the same way a sociologist thinks, they might realize to have tapped into their observation skills and make an assumption that their insights, observations, and knowledge are accurate as well as valuable.
Sociological research hypothesis
Growing up in a violent neighborhood impedes the ability of children to learn
Independent variable : Violence
Dependent variable : Learning
Data collection method
The most appropriate data collection design to be used in testing the above sociological theory is positivist research methods. This kind of research methods is defined as a research approach used to study society, and it entirely depends on scientific evidence like scientific statistics or experiments to investigate or reveal true nature of a society under investigation and how the society functions ( Carr, Boyle & Cornwell, 2018) . A positivist research approach is highly appropriate in this case because it enables a researcher to simply measure societal aspects such as violence, crime, etc. using qualitative methods thus helping in identifying the correlations and patterns of these societal aspects.
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In conclusion, testing this hypothesis scientifically and ethically would entail the natural societal phenomenon and defining a question about the phenomenon and then making a potential solution to the research question. It would also be very important to seek consent from the research participants and maintain the confidentiality of the research ( Carr, Boyle & Cornwell, 2018) . Finally, I would test the hypothesis, and if it is true, I would proceed and find more evidence and counter-evidences regarding the hypothesis. However, if the hypothesis is false, I would create a new hypothesis and make a new trial as well.
Reference
Carr, D. S., Boyle, E. H., & Cornwell, B. (2018). The art and science of social research . New York: W. W. Norton & Company