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Table 3 Cronbach’s alpha coefficient and intra-cluster correlation, confidence interval, and significant probability

From: Psychometric properties of Haj-Yahia’s questionnaire of violence against women in a sample of married women in Tehran, Iran

Component Cronbach’s alpha McDonalds’ Omega ICC CI= %95 P-value
Lower Bound Upper Bound
Psychological 0.90 0.90 0.97 0.72 0.99 0.0001
Physical 0.93 0.94 0.99 0.96 0.99 0.0001
Sexual 0.79 0.84 0.93 0.83 0.97 0.0001
Economic 0.78 0.76 0.94 0.89 0.97 0.0001
Wife abuse (total) 0.95 0.95 0.98 0.69 0.99 0.0001