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Table 3: Predictive accuracy: binary PSO versus DPSO. Paired two-tailed $t$ test for the predictive accuracy—significance level 0.05.

Class level Naive Bayes Bayesian network 1 $t$(9) = 0.467, $p$ = 0.651 $t$(9) = 3.407, $p$ = 0.007 2 $t$(9) = 2.221, $p$ = 0.053 $t$(9) = 3.200, $p$ = 0.010 3 $t$(9) = 3.307, $p$ = 0.009 $t$(9) = 3.556, $p$ = 0.006