Liked One provocative question: what on earth does evidence-based really mean? (EduResearch Matters)

So, what kind of ‘evidence’ is being referred to by the former Minister when he rightly insists we need to ensure that pedagogy is evidence-based’. Is he referring to evidence derived from primary research, such as randomized control trials (RCTs) and observational studies; or secondary research, including systematic reviews of the research literature? The fact is there is no single type of evidence. It is generally recognised that different evidence types have different methodological strengths. At the pinnacle of the ‘hierarchy of evidence’, are systematic reviews, followed by RCTs, cohort studies and then case-controlled studies, case reports and finally expert opinion. Without identifying the type of evidence to which he refers, the former Minister, appears to resort to lay-opinion disguised as evidence.