Evidence-based practice is an approach that has been applied to clinical practice and nursing. Evidence-based practice started initially in medicine and went to fields like education, psychology, nursing and dentistry. It should be noted that the research is based on studies that were carried out and these studies go on to fit the scenario that is currently being dealt with. Treatments that are supported empirically are the ones that are proven to be efficacious in a controlled research within a population. If a person knows that they are being treated after following a study with successful results, they will feel much better receiving the treatment as well (Chambless & Hollon, 1998) In simple words, decisions are made after looking at the best possible evidence that there is. It should be noted that the characteristics, needs, and preferences of the people in the study should match those of the case at hand.

Organizations such as the American Occupational TherapyAssociation and American Nurses associations are stressing a lot on Evidence-based practice. These associations have gone to recommend their members to make use or set aside some interventions depending on the studies that come up. Back in the day, physicians relied solely on the knowledge that was stored in books or what they had learnt from experience.

Evidence-based practice is crucial because it goes on to prove the efficacy of a certain diagnostic procedure, a certain drug or a certain intervention in a case. Medicine and nursing are fields that are constantly evolving and hence they need to be refreshed on a regular. Evidence-based practice therefor ensures constant researches to take place such that these methods will be refreshed on a regular basis. This therefore changes medicine and ensures a better outcome for the general population.

Person in Environment Perspective (PIE)

A person in environment perspective is a practice that is now gaining popularity in educationandsocial practice. This point-of-view is basically established on the idea that a person and the way he acts cannot be comprehended...

In other words, behavior is understood more readily if one knows about a person's familial, spiritual, economic and physical environment. It has been noted that a person's environment goes onto provide a more detailed framework for understanding and organizing entire scenario. This perspective comes handy in social settings like the doctors or psychiatric clinic because it helps the physician attain a better grasp of the presenting problem.
The classification system in PIE was created by social workers in order to assist in coding the social problem. The four factors are social environment, mental health, physical health and social roles in relationship to others. Holism is a way of thinking that is very prominent in the PIE perspective. The holistic process basically enables a person to think multitude of things and base their perceptions on the network of thoughts available. Social workers are well aware of the idea of sets of interacting parts. In simple terms, there does reside a complex system between organisms and the environment that they live in. It is basically to see how well an individual fits into his or her environment. A person's individual needs are therefore associated with the environmental characteristics that are around him. As it would be noted below, this person in environment perspective has been a very important theme in workplace psychology.

It should be noted that PIE and EBP are two different things. When using the PIE approach, the physician attains help organizing observations, planning and creating an intervention strategy. In simple terms, it a framework on how to deal with the problem at hand.It just gives the physician an idea about how to go with things. It is not a theory or a statement that can be verified by empirical evidence from studies that have been carried out. Regardless, it is true that correlation of certainenvironments to behavioral outcomes has made a lot of changes in psychiatric medicine. These formulations that have been made have therefore set the stage for evidence-based practice. For instance, a…