"Greg goes to a high school and observes the way students talk to each other. He makes notes on the words used, the atmosphere of the school and the way the students present themselves to each other. This is an example of a(n) research method."

non-participant observation research method

Explanation:

In non-participant observation studies, Greg is not part of the group being studied. He decides in advance precisely what kind of behaviour is relevant to the study and can be realistically and ethically observed. He observes the way students talk to each other. He makes notes on the words used, the atmosphere of the school and the way the students present themselves to each other.The observation can be carried out in a few different ways. Observation does not only include noting what happened or was said but also the fact that a specific behaviour did not occur at the time of observation.

it apply by theyre artifacts

representative sample

sociologists study the world, observe a predicament or interesting design, and set out to investigate it. they use investigation methods to design a study possibly a comprehensive, detailed and precise, by using experimental method for directing research and gathering data.

to study the characteristics of the whole population, sociologist prefers to obtain the sample which is the finite part of a demographic population whose characteristics are analyzed to obtain data from statistics.

when administering with population, it can be described as a set of respondents picked from a larger population for the goal of a survey. a population could be a group of objects, people, or articles from which samples are obtained for computation of the whole population which is the aim of the sociological study.