Analysis and Improvement on a Unimodal Haptic PIN-Entry Method

Table 1

Results of descriptive statistical analysis (mean and standard deviation).

Analyzed data	Counter Phone Lock	Map lock	Addlock
Task completion time (s)	27.6 (9.4)	20.6 (4.1)	18.0 (3.1)
Trials per session	1.16 (0.47)	1.18 (0.48)	1.08 (0.36)
Usability score	2.67 (1.11)	2.78 (1.08)	3.61 (1.06)