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Table 10 Scores for the six usage statements across the groups

From: Usability of the SAFEWAY2SCHOOL system in children with cognitive disabilities

Usage Mean scores Mean difference Z-value p-value
Con CWD
I would use it often 4.48 4.29 .19 0.65 .519
I want to use it often 4.65 3.79 .86 2.80 .005*
It is easy to use 4.65 4.14 .51 1.89 .058
¥ I need help to use it 2.13 2.29 −.16 −0.34 .732
¥ I will struggle to remember the transmitter 2.61 3.07 −.46 −0.88 .377
¥ I have to learn a lot before I can use it 1.65 3.14 −1.49 −3.32 .001*
  1. ¥ indicates that in the responses to these statements lower scores are positive. Bonferroni corrected α-value = .008. * indicates significant difference between the two groups