Essay on Student Nurse Critical Review of Literature
Research is the systematic and rigorous process of enquiry which aims to describe phenomena and to develop explanatory concepts and theories (Bowling 1997). A research question should be feasible, of interest to the researcher, original, relevant and ethically sound (Sim and Wright 2000). Evidence based health care involves the conscientious, explicit and judicious use of current best evidence about care of individual patients (Sackett et all 1996). In order to approach evidence based care in an evidenced based way the evidence available needs to be reviewed. A health care professional which practices in an evidence based way continues to improve their knowledge base and increase confidence and clinical decision making.
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Brinkhaus et al (2006) and Goerlitz et al (2001) both used blinded placebo randomised controlled trials. Blinding ensures that the preconceived views of subjects and clinicians cannot systematically bias the assessment of outcomes. Intention to treat analysis maintains the advantages of random allocation, which may be lost if subjects are excluded from analysis through, for example, withdrawal or failure to comply.
The purpose of random allocation of participants is to assure that the characteristics of the participants are as likely to be similar as possible across groups at the start of the comparison. If randomisation is done properly, it reduces the risk of a serious imbalance in known