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. 2012 Aug 29;7(8):e44130. doi: 10.1371/journal.pone.0044130

Table 6. Results of the multiple binary logistic regression analyses involving the candidates IAT in Study 2, separately for decided and undecided voters.

Step Variable B SE Wald p Exp(B) Nagel-kerke’s R2 % CCC
Decided voters (N = 410)
1a Constant .162 .122 1.776 .183 1.176 .412 79.3
IATcandidates 1.545 .156 98.621 <.001 2.038
1b Constant .366 .153 5.694 .017 1.442 .631 85.6
Explicitcandidates 2.325 .204 130.052 <.001 10.227
2 Constant .394 .159 6.103 .013 1.483 .658 86.6
IATcandidates .737 .187 15.607 <.001 2.091
Explicitcandidates 1.975 .215 84.580 <.001 7.206
Undecided voters (N = 210)
1a Constant −.144 .146 .975 .323 .866 .138 65.7
IATcandidates .712 .159 19.989 <.001 2.038
1b Constant −.157 .150 1.086 .297 .855 .199 64.3
Explicitcandidates .899 .172 27.450 <.001 2.456
2 Constant −.164 .154 1.132 .287 .849 .248 67.1
IATcandidates .498 .168 8.805 .003 1.645
Explicitcandidates .750 .178 17.790 <.001 2.118

Note. B: regression weight B; SE: standard error of the regression weight B; Wald: Wald criterion; Exp(B): Odds ratio. Relative amount by which the odds increase (Exp(B) >1.0) or decrease (Exp(B) <1.0) when the value of the predictor is increased by 1 unit; CCC: correctly classified cases; DV: voting behavior (0 =  right political camp, 1 =  left political camp). All continuous variables were z-standardized separately for decided and undecided voters prior to the analyses.