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likelihood ratio

   Also found in: Acronyms, Wikipedia 0.03 sec.
likelihood ratio [′līk·lē‚hu̇d ‚rā·shō]
(statistics)
The probability of a random drawing of a specified sample from a population, assuming a given hypothesis about the parameters of the population, divided by the probability of a random drawing of the same sample, assuming that the parameters of the population are such that this probability is maximized.


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In this study, we investigated the sensitivity, specificity, and positive likelihood ratio of a newly devised passive lumbar extension (PLE) test originating principally from prone instability tests reported by Wadsworth et al (11) and Magee.
Notes: Significance levels refer to the results for the likelihood ratio test for all the categories of a variable.
When the results were compared to viral culture alone, sensitivity was 70%, specificity was 99%, positive likelihood ratio was 54, and negative likelihood ratio was 0.
 
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