There are several practical factors that influence a sociologist's choice of research methods. Time and money constraints impact whether large or small-scale studies can be conducted. Funding bodies may require certain data formats that influence the selection of methods like questionnaires. Individual sociologists also have different skill sets and characteristics that determine which methods they can effectively apply based on the requirements of tasks like participant observation or in-depth interviews. The nature of the subject matter and availability of research opportunities also shape methodological decisions.