You've been assigned a research project and been told to use a specific kind of resource from the library's databases, but you're not sure if the article you have found meets your assignment's requirements. Look at these definitions to help you determine your source type.
Journals are where professionals in a field publish their work so that others in their field will read it. They exist to advance the knowledge of the field. Journal articles will be written at an elevated level because they use the jargon of their field. They are not for casual readers in a doctor's office waiting room.
Expert Opinion Piece - An authoritative voice in the field offers their expert opinion on a topic.
Case Report/Study - A case report is a detailed report of the symptoms, signs, diagnosis, treatment, and follow-up of an individual patient. Case reports may contain a demographic profile of the patient, but usually describe an unusual or novel occurrence.
Original Research Study (Cohort Study, Controlled Clinical Study or Randomized Controlled Trial) - This type of article presents original research on a group of subjects. These articles feature standard sections including:
Systematic Review - This type of article answers a research question by collecting and summarizing all the studies on a topic that fit specified eligibility criteria. They are a significant piece of work (on average, a team will take 9-24 months to complete one), and to be useful to other researchers and practitioners they should have:
Meta-Analysis - Meta-analysis is the use of statistical methods to summarize the results of independent studies. A meta-analysis goes beyond critique and integration of systematic reviews and conducts secondary statistical analysis on the outcomes of similar studies. It is a systematic review that uses quantitative methods to synthesize and summarize the results. (Literature Review Research from Old Dominion University)
Clinical Practice Guidelines - These are often developed from meta-analyses. The guidelines are based on an in-depth analysis of MANY studies so you know how to best help a patient.