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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Comput Inform Nurs. 2010 Jan–Feb;28(1):32–41. doi: 10.1097/NCN.0b013e3181c0484e

Table 3.

Mean Comparisons between Prototype-1 and Prototype-2

Prototype-1 Prototype-2 Levene's Test
M SD M SD t p F p
System Usability
(d= .84; r= .38)		 6.19
N=7		 .92 5.41
N=7		 .93 1.59 .138 .05 .826
System Usefulness
(d= .22; r= .10)		 5.45
N=4		 .99 5.24
N=5		 .95 .32 .757 .02 .893
System-Use Satisfaction
(d= .78; r= .36)		 6.53
N=9		 .68 5.75
N=8		 1.00 1.90 .077 1.48 .242
Interface Time
(d= .50; r= .24)		 7.02
N=9		 2.25 5.72
N=8		 2.62 1.10 .290 .95 .346
Interface Error
(d= 2.28; r= .75)		 4.22
N=9		 1.99 1.00
N=8		 1.41 3.81 .002 1.42 .252
Interface Error per Minute
(d= 1.15; r= .50)		 .618
N=9		 .299 .211
N=8		 .354 2.57 .021 .050 .826