Running Head: Epistemic Beliefs and Fallacy Identification

RUNNING HEAD: EPISTEMIC BELIEFS AND FALLACY IDENTIFICATION

Appendix 2

Full Results of Ordinal Logistic Regression Analysis for Epistemic Dimensions and Grades Predicting Identification of Fallacies

Variables / Logistic coefficient / Standard error / p-value / Odds ratio / 95% CI /
Ignorance Fallacy / Model fit: p=0.07, Test of parallel lines: p=0.75, Goodness-of-fit: p=0.04, R2=0.10
Certainty / 0.28 / 0.33 / 0.39 / 1.33 / 0.70-2.52
Complexity / 0.16 / 0.29 / 0.60 / 1.17 / 0.66-2.07
Source / -0.20 / 0.38 / 0.59 / 0.82 / 0.39-1.73
Justification / -0.16 / 0.29 / 0.58 / 0.85 / 0.49-1.50
Grade 9 vs 7 / 0.15 / 0.55 / 0.78 / 1.16 / 0.40-3.40
Grade 10 vs 7 / -0.61 / 0.57 / 0.28 / 0.54 / 0.18-1.66
Grade 11 vs 7 / 0.98 / 0.54 / 0.07 / 2.67 / 0.92-7.73
Appeal to Authority Fallacy / Model fit: p<0.01, Test of parallel lines: p=0.14, Goodness-of-fit: p=0.30, R2=0.16
Certainty / 0.34 / 0.29 / 0.24 / 1.40 / 0.80-2.45
Complexity / 0.28 / 0.25 / 0.26 / 1.33 / 0.81-2.17
Source / -0.34 / 0.34 / 0.32 / 0.71 / 0.37-1.39
Justification / 0.11 / 0.25 / 0.67 / 1.11 / 0.68-1.82
Grade 9 vs 7 / 1.88 / 0.49 / 0.00 / 6.58 / 2.50-17.30
Grade 10 vs 7 / 1.46 / 0.48 / 0.00 / 4.32 / 1.68-11.08
Grade 11 vs 7 / 1.25 / 0.49 / 0.01 / 3.49 / 1.34-9.13
Personal Attack Fallacy / Model fit: p=0.24, Test of parallel lines: p=0.54, Goodness-of-fit: p=0.09, R2=0.06
Certainty / 0.21 / 0.30 / 0.48 / 1.24 / 0.69-2.22
Complexity / 0.06 / 0.27 / 0.81 / 1.06 / 0.63-1.79
Source / -0.09 / 0.36 / 0.80 / 0.91 / 0.45-1.84
Justification / 0.08 / 0.26 / 0.75 / 1.09 / 0.65-1.81
Grade 9 vs 7 / 0.93 / 0.50 / 0.06 / 2.53 / 0.96-6.69
Grade 10 vs 7 / -0.09 / 0.50 / 0.87 / 0.92 / 0.34-2.45
Grade 11 vs 7 / 0.03 / 0.51 / 0.96 / 1.03 / 0.38-2.80
Null Fallacy / Model fit: p=0.06, Test of parallel lines: p=0.05, Goodness-of-fit: p=0.20, R2=0.09
Certainty / 0.13 / 0.30 / 0.66 / 1.14 / 0.64-2.05
Complexity / 0.62 / 0.29 / 0.03 / 1.86 / 1.06-3.25
Source / -0.50 / 0.37 / 0.17 / 0.61 / 0.30-1.24
Justification / -0.02 / 0.27 / 0.96 / 0.99 / 0.58-1.67
Grade 9 vs 7 / -0.78 / 0.49 / 0.11 / 0.46 / 0.18-1.20
Grade 10 vs 7 / -1.15 / 0.51 / 0.02 / 0.32 / 0.12-0.86
Grade 11 vs 7 / -1.34 / 0.53 / 0.01 / 0.26 / 0.09-0.74

Note: Grade 7 has been used as reference group for all logistic regressions.