The study approach is a qualitative research employing the phenomenological design. Qualitative research is designed to reveal a target audience’s range of behavior and the perceptions that drive it with reference to specific topics or issues. It uses in-depth studies of small groups of people to guide and support the construction of hypotheses. Burns and Grove (2003) describes that, qualitative approach is a systematic subjective approach used to describe life experiences and situations to give them meaning. Parahoo (1997) states that qualitative research focuses on the experiences of people as well as stressing uniqueness of the individual. According to Holloway and Wheeler (2002:30), it is a form of social enquiry that focuses on the way people interpret and make sense of their experience and the world in which they live.
Phenomenology is used to describe the commonality of a lived experience within a particular large group. It is the study of experience and how a person experience that it tends to be more descriptive than prescriptive. According to Cresswell (2013), the fundamental goal of this approach is to arrive at a description of the nature of a particular phenomenon. This approach helps the researcher to analyze thoroughly the current perceptions of the parents towards the immunizations implemented by the Department of Health. Since a certain phenomenon happened like the Dengvaxia fallout, this may affect their current perceptions and attitudes towards immunizations. Through this, the researchers can obtain a profound understanding about the certain phenomenon that may benefit the government and the parents as well. The aim of phenomenological qualitative research is to deal with experiences and meanings and to capture as closely as possible the way in which the phenomenon is experienced within the context in which the experience takes place, Giorgi (2003).