%0 Journal Article %T INTERNAL TEST SET (ITS) METHOD: A NEW CROSS-VALIDATION TECHNIQUE TO ASSESS THE PREDICTIVE CAPABILITY OF QSAR MODELS. APPLICATION TO A BENCHMARK SET OF STEROIDS %A EMILI BESAL¨² %A LEONEL VERA %J Journal of the Chilean Chemical Society %D 2008 %I Sociedad Chilena de Qu¨ªmica %X A new internal cross-validation method is presented for assessing the true predictive capability of QSAR models. The test is general and can be applied in many QSAR/QSPR approaches. In this work, the method is tested on a well-known benchmark set of steroids. In order to make the calculations, Topological Quantum Similarity ¨ªndices and M¨²ltiple Linear Regression models were considered %K benchmark steroids %K cross-validation %K predictions %K internal test set method %K statistical validation %K topological quantum similarity indexes %U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072008000300005