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The Weighted Average Method 'WAM' for dental age estimation: a simpler method for children at the 10 year threshold: "it is vain to do with more when less will suffice" William of Ockham 1288-1358.".

Roberts, Graham J; McDonald, Fraser; Neil, Monica; Lucas, Victoria S.
J Forensic Leg Med; 26: 56-60, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25066175
The mathematical principle of weighting averages to determine the most appropriate numerical outcome is well established in economic and social studies. It has seen little application in forensic dentistry. This study re-evaluated the data from a previous study of age assessment at the 10 year threshold. A semiautomatic process of weighting averages by n-td, x-tds, sd-tds, se-tds, 1/sd-tds, 1/se-tds was prepared in an Excel worksheet and the different weighted mean values reported. In addition the Fixed Effects and Random Effects models for Meta-Analysis were used and applied to the same data sets. In conclusion it has been shown that the most accurate age estimation method is to use the Random Effects Model for the mathematical procedures.