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Table 1 Total number of explicit authentication attempts per experimental group (All, Some and None) for each task

From: Understanding user perceptions of transparent authentication on a mobile device

Task

Group

ρ Value

 

All

Some

None

 

Read document

0

0

16

< 0 . 0 0 0 1

Take photo

0

1

8

0.0436

Send email

0

10

23

0.0008

View photo

5

10

17

0.1290

Make local call

1

0

1

0.5958

Change device PIN

2

10

1

0.0009

Make international call

5

19

5

< 0 . 0 0 0 1

Totals

13

50

71

 

Median

1

10

8

 

Mode

0

10

1

 

Std. Dev.

2.27

7.13

8.61

 
  1. The last column shows statistical significance calculated using the Kruskal-Wallis test. ρ<0.05 are significant (bolded values).