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Iranian Journal of Basic Medical Sciences، جلد ۱۶، شماره ۶، صفحات ۸۰۳-۸۰۷
عنوان فارسی
چکیده فارسی مقاله
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عنوان انگلیسی A Systematic Review of Statistical Methods Used to Test for Reliability of Medical Instruments Measuring Continuous Variables
چکیده انگلیسی مقاله Objective(s): Reliability measures precision or the extent to which test results can be replicated. This is the first ever systematic review to identify statistical methods used to measure reliability of equipment measuring continuous variables. This studyalso aims to highlight the inappropriate statistical method used in the reliability analysis and its implication in the medical practice. Materials and Methods: In 2010, five electronic databases were searched between 2007 and 2009 to look for reliability studies. A total of 5,795 titles were initially identified. Only 282 titles were potentially related, and finally 42 fitted the inclusion criteria. Results: The Intra-class Correlation Coefficient (ICC) is the most popular method with 25 (60%) studies having used this method followed by the comparing means (8 or 19%). Out of 25 studies using the ICC, only 7 (28%) reported the confidence intervals and types of ICC used. Most studies (71%) also tested the agreement of instruments. Conclusion: This study finds that the Intra-class Correlation Coefficient is the most popular method used to assess the reliability of medical instruments measuring continuous outcomes. There are also inappropriate applications and interpretations of statistical methods in some studies. It is important for medical researchers to be aware of this issue, and be able to correctly perform analysis in reliability studies.
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نویسندگان مقاله rafdzah زکی | rafdzah zaki
1,3julius centre university of malaya, department of social amp;amp; preventive medicine, faculty of medicine, university of malaya, 50603, kuala lumpur, malaysia


آونگ bulgiba | awang bulgiba
4department of applied statistics, faculty of economics amp;amp; administration, university of malaya, 50603, kuala lumpur, malaysia


noorhaire نوردین | noorhaire nordin
1,3julius centre university of malaya, department of social amp;amp; preventive medicine, faculty of medicine, university of malaya, 50603, kuala lumpur, malaysia


نور azina اسماعیل | noor azina ismail
4department of applied statistics, faculty of economics amp;amp; administration, university of malaya, 50603, kuala lumpur, malaysia
نشانی اینترنتی http://ijbms.mums.ac.ir/article_998.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article
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