Grounded theory is a systematic approach used mostly, but not solely, in qualitative research undertaken by social scientists. The process entails the development of hypotheses and theories through data collection and analysis.
Grounded theory methodology is a research technique with the primary goal of studying participant experiences in order to construct a theory based on the data received from participants. In order to create a grounded theory, the qualitative analysis relies heavily on interview data from a large number of individuals.
Based theory (GT) is a research approach concerned with the development of theory1 that is 'grounded' in evidence that has been collected and analyzed consistently. 2 It is used to discover social links and collective behaviors, which are referred to as social processes.
GT is usually used for covering uncovered theories such things as social relationships and behaviours of groups. The qualitative or quantitative analysis applicable, but the qualitative method is the most famous one. In analysing process use memo notes and themes (which you retrieved from data collection e.g. from in-depth interview) then categorize them, finally create concepts to develop the theory. (you may use N-Vivo qualitative analysis software to organise the themes and find category)
GT is similar to Phenomenological research design where you focus on the participants' experiences, feelings, opinions and perceptions on the subject being studied. The research methodology appropriate for this is Qualitative where you can do a Focused group discussion for smaller cohorts or a structured interview for a larger group.
Maria Gregoria Robles Concepcion I disagree with the advice to use a structured questionnaire in GT. The goal of GT is to learn from the participants about their perspectives and experiences, and to avoid the kind of researcher based pre-conceptions that go into a structured questionnaire.