“…(, p. 1564) surmise, controversy over trials are derived from the interpretation that they are ‘unethical, positivist, uncritically imported from other disciplines, and unable to yield the certainty they promise’. Indeed, debates have abounded about the perceived unequitable or unethical assignment of individuals to control groups (Gueron, ; Dixon et al ., ; Mezey et al ., ), as though the expenditure of public resources on interventions without evidence of effectiveness does not pose its own ethical challenges. Further, more pragmatic limitations have included insufficient recruitment to ensure statistical power, practitioners circumventing randomisation processes by the introduction of their own rationing strategies, and the struggle to secure funding for the conduct of the trial itself (Gueron, ; Dixon et al ., ; Mezey et al ., ).…”