Title |
The null hypothesis significance test in health sciences research (1995-2006): statistical analysis and interpretation
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Published in |
BMC Medical Research Methodology, May 2010
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DOI | 10.1186/1471-2288-10-44 |
Pubmed ID | |
Authors |
Luis Carlos Silva-Ayçaguer, Patricio Suárez-Gil, Ana Fernández-Somoano |
Abstract |
The null hypothesis significance test (NHST) is the most frequently used statistical method, although its inferential validity has been widely criticized since its introduction. In 1988, the International Committee of Medical Journal Editors (ICMJE) warned against sole reliance on NHST to substantiate study conclusions and suggested supplementary use of confidence intervals (CI). Our objective was to evaluate the extent and quality in the use of NHST and CI, both in English and Spanish language biomedical publications between 1995 and 2006, taking into account the International Committee of Medical Journal Editors recommendations, with particular focus on the accuracy of the interpretation of statistical significance and the validity of conclusions. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Mexico | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 3 | 2% |
Germany | 1 | <1% |
Chile | 1 | <1% |
France | 1 | <1% |
Colombia | 1 | <1% |
Australia | 1 | <1% |
Cuba | 1 | <1% |
Spain | 1 | <1% |
Brazil | 1 | <1% |
Other | 0 | 0% |
Unknown | 116 | 91% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 24 | 19% |
Student > Master | 17 | 13% |
Student > Bachelor | 16 | 13% |
Student > Ph. D. Student | 11 | 9% |
Professor | 10 | 8% |
Other | 38 | 30% |
Unknown | 11 | 9% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 28 | 22% |
Agricultural and Biological Sciences | 15 | 12% |
Social Sciences | 12 | 9% |
Psychology | 10 | 8% |
Mathematics | 8 | 6% |
Other | 30 | 24% |
Unknown | 24 | 19% |