Usability evaluation model of an application with emphasis on collaborative security: an approach from social dimensions

Journal of the Brazilian Computer Society

Table 12 Total-item statistics for N4. Source: the authors

Question	Cronbach’s alpha if the item is deleted	Question	Cronbach’s alpha if the item is deleted
Q7	0.731	Q17	0.537
Q10	0.641	Q20	0.560
Q11	0.631	Q21	0.547
Q15	0.617