How to do a literature search. Andrew Booth (University of Sheffield) and Mary Dixon-Woods (University of Leicester). This course will cover:. The role of the literature review [10 mins] Types of evidence [5 mins] Formulating answerable questions [10 mins] Sources of evidence [12 mins]
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Andrew Booth (University of Sheffield)and Mary Dixon-Woods (University of Leicester)
4. Helps define your terminology or identify variations in definitions used by researchers or practitioners.
5. Helps to identify appropriate research methodologies.
6. You can also identify validated scales and instruments.
Health services research uses PATIENT-INTERVENTION-COMPARISON-OUTCOME(PICO) structure
Within social sciences research the following may be more appropriate:
[N.B. We are going to search Web of Science and Ovid Medline/CINAHL]
From: Etext on Health Technology Assessment (HTA) Information Resources. Chapter 4: Searching MEDLINE/PubMed for Health Technology Assessment Information by Viveka Alton and Ione Auston. http://www.nlm.nih.gov/nichsr/ehta/chapter4.html
Vocabulary mapping uses statistical analysis to determine which subject headings (index terms) occur most frequently in documents containing your free text query.
A controlled vocabulary arranged in a known (e.g. alphabetical or hierarchical) order containing:
Explosions following search terms?
Vaginal Birth After Cesarean
Cervix Dilatation and Effacement
Use to combine like terms or terms within the same concept
DOULAS OR LABOUR SUPPORT
Use to combine together different concepts
CHILDBIRTH AND CONTINUOUS SUPPORT
Use to exclude terms from your search
DOULA NOT MIDWIFE
DOULAS OR LAY SUPPORT
x following search terms?
Find a key reference from (at least) last 5-10 years and follow all references that cite it
EITHER on the basis of frequency of common subject headings (MEDLINE)
OR on the basis of frequency of common citations (Web of Science)
“optimal permutations of search terms found in the titles, abstracts or the subject indexing of relevant articles that have been demonstrated to have a high correlation with study quality”
“pre-prepared search strategies, previously referred to as ‘search filters’, ‘quality filters’, ‘hedges’ or ‘optimal search strategies’… developed (and usually tested) for use with particular databases and/or search interfaces to retrieve specific types of evidence, study design or …information more effectively”
Qualitative Research/ OR
(user$ adj view$) OR