Final answer:
Microsociology is the study of small groups and individual interactions, using methods that often include experimental approaches to analyze social interactions on a micro scale.
Step-by-step explanation:
The study of small groups often through experimental means is referred to as Microsociology. This branch of sociology stresses the analysis of social interactions on a micro scale, focusing on individual interactions and small group dynamics. Microsociologists might explore topics such as the rules of conversation among different social groups, contrasting with Macrosociology, which examines larger societal trends and the behavior of large groups and institutions.