Usability of the SAFEWAY2SCHOOL system in children with cognitive disabilities

European Transport Research Review

An Open Access Journal

Table 8 Scores for the five “What would you need to know and/or do?”-statements across the groups and the five video scenarios

What would you need to know and/or do when you:	Mean scores		t-value	p-value	Mean difference	95 % confidence interval of the difference
What would you need to know and/or do when you:	Con	CWD	t-value	p-value	Mean difference	Lower	Upper
Walk to the bus stop?	1.91	1.43	2.084	.045	.48	.012	.957
Wait at the bus stop?	.74	.36	1.089	.289	.38	−.348	1.112
Entering the bus?	1.30	.93	1.096	.281	.37	−.320	1.072
Exiting the bus?	.96	.36	1.574	.124	.60	−.174	1.372
Go home?	1.00	.00	3.423	.002*	1.0	.407	1.593

Bonferroni corrected α-value = .01. * indicates significant difference between the two groups. Cohen’s d of the significant difference = 1.3