Sociology

In this chapter, different types of groups are discussed. There are 3 different researches addressed in your text. In your own words, please discuss the research and what type of group characteristics are associated with each research ie: primary/secondary groups, in/out groups, reference groups, etc. This is a graded assignment. Please respond by 3/14 at 9 pm.

I need it in 3 paragraphes  and less than one page, I don't want 2 pages or more.