Plastic Pasteur pipettes, also referred to as transfer pipettes, have their stems and bulbs in the form of a single piece made of plastic. There are different sizes. The volumes are usually marked on the stem, though the markings are rather crude and are not particularly accurate.
Research Methods in Sociology â An Introduction. An introduction to research methods in Sociology covering quantitative, qualitative, primary and secondary data and defining the basic types of research method including social surveys, experiments, interviews, participant observation, ethnography and longitudinal studies. Why do social research?
Qualitative research has alternative research methods and date collection methods. Examples of qualitative research methods are action research, case study, grounded theory, historical methods, and ethnography. Ethnography is the study of cultures in their natural settings (York, 1998). Grounded theory is designed to develop theory through a highly inductive but systematic process of discovery.