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. Author manuscript; available in PMC: 2015 Nov 24.

Published in final edited form as: J Usability Stud. 2007 Feb;2(2):76–95.

Table 1.

Time to Complete Usability Tasks by Round

	Time (min)

Round	1	2	3	4	5
*Question* 1	QNC^*	9	17	6	4
*Question* 2	QNC	14	16	9	5
*Question* 3	QNC	12	QNC	14	7
*Question* 4	QNC	8	QNC	12	12
*Question* 5	QNC	12	18	13	12

*Average*^†	N/A	11	17	11	8

^*

QNC ~ Question Not Completed

^†

Average was calculated for round 3 with only the three values 17, 16, 18. The other two Questions are QNC.