Methodological review demonstrates the value of the key informant technique in health care research, highlighting its utility for studying professional relationships among medical specialists.
BACKGROUND AND OBJECTIVE: This article considers the role of the key informant technique as a qualitative research method and examines the potential contribution of the approach to health care research. METHOD: The principles underlying the technique and the advantages and disadvantages are considered, illustrated with examples from a range of social science studies. RESULTS AND CONCLUSION: An example of the author's own use of key informants in a study of the professional relationship between general practitioners and specialists is described.
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MN Marshall (1996) studied this question.
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