Document Detail

Sports injury research. How to avoid bias.
MedLine Citation:
PMID:  3046391     Owner:  NLM     Status:  MEDLINE    
A valid study is one that is accurate and without bias. Bias may occur in a study in four major ways. Susceptibility bias may arise if groups are not similar at the initial state. The potential for performance bias exists if procedures are not performed comparably. Detection bias may occur if outcomes are not measured comparably. Transfer bias occurs if there is differential loss at followup. The major advantage of a randomized clinical trial is in its attempt to prevent susceptibility bias. Despite the methodologically correct implementation of a study, however, results may not be generalizable due to the particular population, restrictive eligibility criteria, or poor participation. An investigator must balance dual goals: conducting a valid trial and providing generalizable results.
S Rudicel
Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  The American journal of sports medicine     Volume:  16 Suppl 1     ISSN:  0363-5465     ISO Abbreviation:  Am J Sports Med     Publication Date:  1988  
Date Detail:
Created Date:  1988-10-12     Completed Date:  1988-10-12     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7609541     Medline TA:  Am J Sports Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  S48-52     Citation Subset:  IM    
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MeSH Terms
Athletic Injuries / therapy
Clinical Trials as Topic
Follow-Up Studies
Generalization (Psychology)
Random Allocation
Research Design*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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