The term "evidence-based medicine" was coined in the 1980s to describe a method of determining the optimal treatment based on scientific evidence. In the early 1990s, the evidence-based practise movement began in England. Evidence-based medicine (EBM) or evidence-based practise (EBP) is the careful application of the best available evidence in making decisions regarding a patient's care. Evidence-based practise is both a philosophy and a methodology. The concept is based on the ethical principle that clients are entitled to the most effective interventions available. The approach of EBP is the way we go about finding and then implementing those interventions.