This study examines the contestability of “relevance” as an abstract construction with no fixed meaning when applied, and questions its usage in the research quality debate. It finds that different research agendas and approaches have their own idiosyncratic logic and that any logic has its own criteria for assessing quality which cannot be applied to assess the quality of others. This is illustrated by delineating practitioner-led research from academic-led research and by comparing and contrasting research perspectives as examples. The research (...) quality debate becomes meaningless when it is limited to a singular research agenda or approach as in practice these are invariably combined. Having said this, however, every agenda and approach can be argued to be legitimate as potentially each can find what otherwise cannot be noticed. As a result, this study challenges the conventional unitarist wisdom that conceptualises knowledge as commodity, and suggests instead that heterogeneity, linked to tolerance and relative independence of means and mind, free from the control or influence of others to enable critical distance from context and status quo and facilitate judgement, is the key to those seeking a meaningful research quality debate that acknowledges tolerance of the diversity of knowledge, difference, contestation and struggle. Although such heterogeneity may at first appear to add confusion rather than clarity, without first looking at this heterogeneity it is not possible to develop a dialogue, in the context of the present neo-liberal post-political drift that emphasises consensus, the annulment of dissensus and diverts attention from relationships of power, through which a positive contribution can be made to the research quality debate. (shrink)