Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2001-7-24
pubmed:abstractText
Previous papers in this series on evidence-based dentistry have discussed the first 2 steps in seeking answers to clinical problems formulating a clear question and strategically searching for evidence. The next step, critical appraisal of the evidence, is made easier if one understands the basic concepts of clinical research design. The strongest design, especially for questions related to therapeutic or preventive interventions, is the randomized, controlled trial. Questions relating to diagnosis, prognosis and causation are often studied with observational, rather than experimental, research designs. The strongest study design should be used whenever possible. Rules have been established to grade research evidence. This paper, the fourth in the series, presents an overview of research methodology most commonly used in the dental literature.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:status
MEDLINE
pubmed:issn
1488-2159
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
67
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
375-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:articleTitle
Evidence-based dentistry: Part IV. Research design and levels of evidence.
pubmed:affiliation
Faculty of Dentistry, Sunnybrook and Women's College Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada. susan.sutherland@swchsc.on.ca
pubmed:publicationType
Journal Article