The research basis of health care decision making

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Abstract
Regarding health care services, the decision-making process occurs at three primary levels: macro (national), mid-range (hospital) and micro (individual practitioner). The research basis for this process at each of these levels is briefly discussed, with an emphasis concerning which type of data is and/or should be utilized. The paradigm assumptions behind data generation are also explored with reference to methodologies which seek to combine different types of data. The nursing profession, within the changing structure of the NHS, needs to take account of data generation if it is to play an active research role, and therefore be able to influence the health care decision-making process.