Table 3 Key concept: evidence-based practice (EBP)

Evidence–based practice (EBP) was introduced in medicine as a conscientious use of current best evidence in clinical-decision making about individual patients. EBP revolves around efficacy research, which assesses whether specific interventions produce causal (measurable) effects on clinical populations. Internal validity and randomisation of samples are crucial to efficacy research. An example of such research is randomised controlled trials (RCTs).