<P> This model of care has been studied for 30 years in universities and is gradually making its way into the public sector . It effectively moves away from the old "medical model" (You have a disease, take this pill .) to an "evidence presented model" using the patient as the starting point in diagnosis . EBPs are being employed in the fields of health care, juvenile justice, mental health and social services among others . The theories of evidence based practice are becoming more commonplace in the nursing care . Nurses who are "baccalaureate prepared are expected to seek out and collaborate with other types of nurses to demonstrate the positives of a practice that is based on evidence ." </P> <P> Key elements in using the best evidence to guide the practice of any professional include the development of questions using research - based evidence, the level and types of evidence to be used, and the assessment of effectiveness after completing the task or effort . One obvious problem with EBP in any field is the use of poor quality, contradictory, or incomplete evidence . Evidence - based practice continues to be a developing body of work for professions as diverse as education, psychology, economics, nursing, social work and architecture . </P> <P> Evidence - based practice of psychology requires practitioners to follow psychological approaches and techniques that are based on a particular kind of research evidence (Sackett, Straus, Richardson, Rosenberg, & Haynes, 2000). </P> <P> Criteria for empirically supported therapies have been defined by Chambless and Hollon (1998). Accordingly, a therapy is considered "efficacious and specific" if there is evidence from at least two settings that it is superior to a pill or psychological placebo or another bona fide treatment . If there is evidence from two or more settings that the therapy is superior to no treatment it is considered "efficacious". If there is support from one or more studies from just a single setting, the therapy is considered possibly efficacious pending replication . Following these guidelines, cognitive behavior therapy (CBT) stands out as having the most empirical support for a wide range of symptoms in adults, adolescents, and children . The term "evidence - based practice" is not always used in such a rigorous fashion, and many psychologists claim to follow "evidence - based approaches" even when the methods they use do not meet established criteria for "efficacy" (Berke, Rozell, Hogan, Norcross, and Karpiak, 2011). In reality, not all mental health practitioners receive training in evidence - based approaches, and members of the public are often unaware that evidence - based practices exist . However, there is no guarantee that mental health practitioners trained in "evidence - based approaches" are more effective or safer than those trained in other modalities . Consequently, patients do not always receive the most effective, safe, and cost effective treatments available . To improve dissemination of evidence - based practices, the Association for Behavioral and Cognitive Therapies (ABCT) and the Society of Clinical Child and Adolescent Psychology (SCCAP, Division 53 of the American Psychological Association) maintain updated information on their websites on evidence - based practices in psychology for practitioners and the general public . It should be noted that "evidence - based" is a technical term, and there are many treatments with decades of evidence supporting their efficacy that are not considered "evidence - based ." </P>

8. the best definition of evidence based practice (ebp) is which of the following