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Table 1 Reliability of ICIAIs and psychosocial measurement scales

From: Does Chinese culture influence psychosocial factors for heroin use among young adolescents in China? A cross-sectional study

Scales Items Cronbach's alpha
   Boys Girls
Family ICIAI 18 0.90 0.88
Friend ICIAI 18 0.87 0.87
Classmate ICIAI 18 0.85 0.88
Favorable attitude towards heroin use 7 0.84 0.78
Perceived behavioral control 10 0.86 0.81
Perceived peer control 6 0.77 0.71
Communication with parent about heroin use 10 0.80 0.83