Nursing and Allied Health Subject Guide

Learn how to find and evaluate articles for literature reviews, and quickly access other key types of medical information (e.g. statistics, grant notices, and the Bates Visual Guide to Physical Examination).

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Searching:

• No two research articles are the same. Many beginners expect to find several articles on the same exact subject; however, it is important to remember that each research study will examine a topic in a unique way. When searching for articles, look for studies that address your basic topic in a variety of ways.
• If the literature review is intended to accompany an actual research proposal, it is a problem if a study has already been conducted on the proposed research. The purpose of research is to extend what is already known about a topic.  Repeat studies that use identical methods and participants are rare, if not non-existent.
• It is okay to include an article/study in a review if it covers the topic of interest, even if extraneous information is also present. For example, if a reviewer is searching for studies about utilizing yoga therapeutically for autistic children, it would be okay to include a study that compares the use of yoga versus pilates in children with autism in therapeutic practice. 
• Limiting by date is not always the right thing to do. Sometimes the best articles on a topic are old, particularly if you are looking for foundational, seminal, or well established knowledge. For example, some of the very best articles about the biomechanics of the shoulder are decades old. Cutting out articles based on publication date can eliminate top research. On the other hand, if you are looking for the best surgical technique or drug treatment, only the newest articles will do! Be logical when limiting by date.

Writing:

• Literature reviews must remain neutral. They are not persuasive essays. All relevant articles/studies on a topic must be included in reviews, whether or not they support the author's hypothesis.
• Paraphrasing must be done with care to accurately portray facts without any distortion. 
• Cite, cite, cite. You cannot cite too much. Every time information is taken from a research paper, it must be cited--whether or not the original language was used.