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Table 3 Cronbach’s α coefficient and ICC for the disruptive behavior scale and its subscales

From: Disruptive behavior scale for adolescents (DISBA): development and psychometric properties

Domain Number of items Cronbach’s α coefficient ICC
Aggressive school behavior 12 0.82 0.79
Classroom defiant behavior 6 0.91 0.87
Unimportance of school 6 0.77 0.71
Defiance to school authorities 5 0.86 0.88
Total scale 29 0.89 0.85
  1. ICC intraclass correlation coefficient