The aim of this study is to investigate the effects on the neurocognitive system of the exposure to aluminium in welders. Tha main difficulties in finding the appropriate statistical technique are: 1) non normality of responses; 2) multidimensionality (multivariate response); 3) presence of confounding factors as age and length of service; 4) multivariate testing of hypotheses with restricted alternatives. We propose a global procedure to address the above problems. Such procedure is based on nonparametric techniques and post stratification.
Nonparametric statistical techniques and social medicine: a study about the effects of alluminium
BONNINI, Stefano;
2005
Abstract
The aim of this study is to investigate the effects on the neurocognitive system of the exposure to aluminium in welders. Tha main difficulties in finding the appropriate statistical technique are: 1) non normality of responses; 2) multidimensionality (multivariate response); 3) presence of confounding factors as age and length of service; 4) multivariate testing of hypotheses with restricted alternatives. We propose a global procedure to address the above problems. Such procedure is based on nonparametric techniques and post stratification.File in questo prodotto:
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