منابع مشابه
Demystifying Type I and Type II Errors
2010;31;209 Pediatrics in Review Jacky M. Jennings and Erica Sibinga Research and Statistics : Demystifying Type I and Type II Errors http://pedsinreview.aappublications.org/content/31/5/209 located on the World Wide Web at: The online version of this article, along with updated information and services, is http://pedsinreview.aappublications.org/content/suppl/2010/06/23/31.5.209.DC1.html Data ...
متن کاملUnderstanding Type I and Type II Errors
• Type I error, also known as a “false positive”: the error of rejecting a null hypothesis when it is actually true. In other words, this is the error of accepting an alternative hypothesis (the real hypothesis of interest) when the results can be attributed to chance. Plainly speaking, it occurs when we are observing a difference when in truth there is none (or more specifically no statistical...
متن کاملPrimer on type I and type II errors.
Effective Clinical Practice January/February 1999 Volume 2 Number 1 45 Statistical tests are tools that help us assess the role of chance as an explanation of patterns observed in data.* The most common “pattern” of interest is how two groups compare in terms of a single outcome. After a statistical test is performed, investigators (and readers) can arrive at one of two conclusions: 1) The patt...
متن کاملHypothesis testing, type I and type II errors
Hypothesis testing is an important activity of empirical research and evidence-based medicine. A well worked up hypothesis is half the answer to the research question. For this, both knowledge of the subject derived from extensive review of the literature and working knowledge of basic statistical concepts are desirable. The present paper discusses the methods of working up a good hypothesis an...
متن کاملFluoride, Iq, and Advice on Type I and Ii Errors
A 38-year prospective study of 992 New Zealand children on fluoride (F) and IQ, of whom an uncertain number (0–101) had not received, at age 5 years, additional F with F tablets (taken: 139, not taken: 763, unknown: 90), community water fluoridation (CWF) (lived in CWF area: 891, never lived in CWF area: 99, unknown: 2) or F toothpaste (always used: 634, sometimes used: 240, never used: 22, unk...
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ژورنال
عنوان ژورنال: European Journal of Epidemiology
سال: 2010
ISSN: 0393-2990,1573-7284
DOI: 10.1007/s10654-010-9437-5