The use of correlational probability values (p‐values) as a means of evaluating evidence in nursing and health care has largely been accepted uncritically. There are reasons to be concerned about an uncritical adherence to the use of significance testing, which has been located in the natural science paradigm. p‐values have served in hypothesis and statistical testing, such as in randomized controlled trials and meta‐analyses to support what has been portrayed as the highest levels of evidence in the framework of evidence‐based (...) practice. Nursing has been minimally involved in the rich debate about the controversies of treating significance testing as evidentiary in the health and social sciences. In this paper, we join the dialogue by examining how and why this statistical mechanism has become entrenched as the gold standard for determining what constitutes legitimate scientific knowledge in the postpositivistic paradigm. We argue that nursing needs to critically reflect on the limitations associated with this tool of the evidence‐based movement, given the complexities and contextual factors that are inherent to nursing epistemology. Such reflection will inform our thinking about what constitutes substantive knowledge for the nursing discipline. (shrink)

A standard view would suggest that research is a neutral apolitical activity. It neutralizes external pressures by its fidelity to robust scientific methods. However, politics is an inevitable part of human knowledge. Our knowledge of the world is always mediated by human priorities. What matters is therefore a contested and political debate rather a neutral accumulation of factual data. How researchers manage this varies. Research paradigms are one way in which research engages with knowledge. They frame knowledge within epistemological and (...) ontological philosophies. In this paper, I will explore this view in relation to neo‐positivism, qualitative research, Foucault and critical realism. I will argue that if nursing knowledge is to be effective it needs to acknowledge the political, particularly in the context of neoliberalism. Healthcare systems are having to cope with a social world increasingly dominated by market fundamentalism, extreme levels of inequality and a rise in xenophobia. These forces are undermining the provision of ethically sound health care, misdirecting research practice and contributing to a discourse of dehumanization. These forces need to be challenged politically and I will argue that epistemologically diverse approaches, alongside a realist ontology can provide a way forward for nursing research. (shrink)