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Table 5 Coefficients for the Mixed‐Effect Logistic Regression model for user Study‐2. The coefficients show whether they had a statistically significant effect on response accuracy

From: Designing challenge questions for location‐based authentication systems: a real‐life study

Feature

Coefficients

 

Legitimate

Strong adversary

Naive adversary

Intercept

0.82

1.03

0.21

Time to answer (seconds)

‐0.00142

0.00326

0.00545

Days Ago

‐0.229*

‐0.231

‐0.102

Zoom Level

0.995*

0.750*

‐0.567

Number of Zoom In

‐0.231*

‐0.368*

‐0.0922

Number of Zoom Out

0.643

0.0788

0.205

Number of Search

‐0.140

0.389

‐0.251

Number of Drag

‐0.0285

‐0.0662

‐0.0360

Number of Changes

0.370

‐0.288

0.112

Question Weight

‐3.997

‐7.123*

‐0.000781

  1. Significant features are designated by a * next to their coefficients.