“…The majority of publications are theoretical and concerned with how EBP research could be practised; they do not discuss the methodological challenges and practical problems that arise from its actual conduct (Klein, 2000;Pawson, 2001aPawson, , 2001bPetticrew, 2001;Boaz et al, 2002;Packwood, 2002;Sanderson, 2002;Solesbury, 2002;Young et al, 2002;Wallace et al, 2004). This has given rise to the impression that such research is straightforward and uncomplicated, requiring only the technical application of the methodology in order to get the desired results.…”