The look-elsewhere effect is a phenomenon in the statistical analysis of scientific experiments where an apparently statistically significant observation may have actually arisen by chance because of the sheer size of the parameter space to be searched. Once the possibility of look-elsewhere error in an … Ver mais Many statistical tests deliver a p-value, the probability that a given result could be obtained by chance, assuming the hypothesis one seeks to prove is in fact false. When asking "does X affect Y?", it is common to vary X … Ver mais • A Swedish study in 1992 tried to determine whether or not power lines caused some kind of poor health effects. The researchers surveyed everyone living within 300 m of high-voltage power lines over a 25-year period and looked for statistically … Ver mais • XKCD comic illustrating the Look-Elsewhere effect Ver mais • Bonferroni correction • Data dredging • Law of truly large numbers: with a sample size large enough, any outrageous thing is likely to happen Ver mais Web1 de set. de 2024 · The look-elsewhere effect is a phenomenon in the statistical analysis of scientific experiments where an apparently statistically significant observation may have …
What do "local" and "global" mean when talking about standard ...
WebIn medical diagnostics, the look elsewhere effect can lead to false positive results when multiple tests are conducted on a patient without considering the increased probability of chance findings. This can result in unnecessary treatments or … WebYou have fallen prey to the LEE: you looked in many places for a possible signal, and found a significant effect somewhere; the likelihood of finding something in the entire region … indoor go karts chicago
Higgs Discovery and the Look Elsewhere Effect - University of …
WebThe look-elsewhere effect is a frequent cause of "significance inflation" when the number of independent tests n is underestimated because failed tests are not published. One paper … WebThe only thing that can be estimated with some certainty is the look elsewhere effect within a given, well-defined analytical problem. Indeed Monte Carlo simulations are the method of choice. For example, if you have a number of bins in your binned data, you can evaluate how that changes the true (global) probability of observing a 3-sigma excess in any one … WebLook Elsewhere Effect in 2-d Kyle Cranmer, Nov 19, 2015 Based on Estimating the significance of a signal in a multi-dimensional search by Ofer Vitells and Eilam Gross http://arxiv.org/pdf/1105.4355v1.pdf Thanks to Ruggero Turra for … indoor go kart racing houston tx