New nursing researchers are faced with a smorgasbord of competing methodologies. Sometimes, they are encouraged to adopt the research paradigms beloved of their senior colleagues. This is a problem if those paradigms are no longer of contemporary methodological relevance. The aim of this paper was to provide clarity about current research paradigms. It seeks to interrogate the continuing viability of positivism as a guiding paradigm for nursing research. It does this by critically analysing the methodological literature. Five major paradigms are (...) addressed: the positivist; the interpretivist/constructivist; the transformative; the realist; and the postpositivist. Acceptance of interpretivist, transformative or realist approaches necessarily entails wholesale rejection of positivism, while acceptance of postpositivism involves its partial rejection. Postpositivism has superseded positivism as the guiding paradigm of the scientific method. The incorporation in randomized controlled trials of postpositivist assumptions indicates that even on the methodological territory that it once claimed as its own, positivism has been rendered redundant as an appropriate paradigm for contemporary nursing research. (shrink)

This article advocates for the validity of Realist Evaluation (RE) as a manifestation of Critical Realism in evaluation research despite criticisms suggesting that the former disregards principles from Bhaskarian ontology. Specifically, I argue that critics overstate RE's philosophical actualism in their argument that its inclination towards technocratic knowledge impedes its scrutiny of stratified social systems. Notwithstanding its limitations in fully elucidating causal structural mechanisms in social inquiry, I argue that RE's research rationale can contribute to the stages of explanatory research (...) based on CR by bridging the comprehension of mechanisms linked to micro-interventions with exploring potential structural forces operating across levels of reality. To illustrate this point, I present a case of a policy evaluation study I led that demonstrates how a RE-oriented research design facilitated a transition from investigating specific programme mechanisms within the interventions' context to proposing transcendental questions about the governance of the education system in Colombia. (shrink)