Theory and application of research principles and philosophical underpinning for a study utilising interpretative phenomenological analysis.

Introduction: Qualitative research approaches have potential to provide unique and valuable insights intoperceptions, experiences and behaviours. Reports however indicate that papers often fail to sufficiently detail the underlying principles that explain the philosophical assumptions and ontological, epistemological and methodological perspectives. Primarily directed towards radiographers considering a qualitative approach for doctoral research, this paper will also be informative for other health and social care practitioners. Method: Part 1 discusses research principles broadly and how philosophical assumptions can be used for selection of the approach and methodology to explore a particular topic. Part 2 provides a worked example applied in context for a qualitative approach utilising Interpretative Phenomenological Analysis (IPA), that explored perceptions and experiences of lived experiences of radiographers on a journey to advanced practice in skeletal trauma reporting. Results: The paper identifies the need for understanding of the theory and application of research principles broadly. Explanation and justification of choice is expected for the selection of research approach, paradigm, philosophical underpinning, underlying assumptions and methodology, to best answer the research question and inform participant selection, data collection, data analysis and interpretation methods Conclusion: Coherent research requires synthesis of ontology, epistemology and methodology with the choice of research design based on the most appropriate approach. Qualitative research has greatly enhanced its reputation for methodological rigour and the uptake of IPA is increasing within health and social care. Implications for practice: Future research within the Interpretative paradigm, utilising IPA as a methodology has potential to expand the body of evidence for Radiography research. (c) 2019 The College of Radiographers. Published by Elsevier Ltd. All rights reserved.