Variable selection was performed using backward stepwise modeling with a p value for variable exclusion of 0.15.
Even Gordon Brown has graciously allowed protesters to return to Westminster, so why does an airport warrant the largest variable exclusion zone since the sinking of the Belgrano?
In this subsection I briefly intend to explain why our main results are not driven by the exclusion of variable TRUTHFUL from the crime process.
The final multivariate models with only statistically significant variables were obtained by stepwise exclusion of the least significant variable from the models and corrected for age and sex.
The full list of more than 300 potential variables was ultimately reduced to 88 by exclusion of variables with low volumes and low significance levels across the sites.
Data reduction, in this case by indicator selection, is only considered in the components where instability is suspected in the CATPCA solution and corrected by the exclusion of variables.
The models were subsequently reduced by stepwise exclusion of variables which were not significant at the p-value <0.05 in the multivariable models [ 22].
In these studies, each new relation was presented by a variable number of exclusion trials before the application of the learning tests, with it being difficult to estimate how many trials were, in fact, necessary.
The models were built by the consecutive exclusion of one variable from each full model using the likelihood ratio test as described by Hosmer and Lemeshow [ 29], refitting and verifying the stability of the model after each deletion.
The ozone effect was not significantly influenced by the addition of weather or other pollutant variables into the model or by the exclusion of repeat ED visits.
