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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: AIDS Care. 2011 Jun 16;23(11):1509–1518. doi: 10.1080/09540121.2011.582080

Table 2.

Summaries of Composite Index Measures of IMB Constructs and Social Influences.

Composite Index Measures Number of Item in the Measure Sample Item in the Measure Cronbach’s Alpha Coefficient
IMB measures
 HIV information 16 HIV cannot be transmitted through hug or sharing of utensils 0.62
 Prevention intentions (stable partner) 7 Will discuss condom use before sex 0.82
 Prevention intentions (non-stable partner) 7 Will discuss condom use before sex 0.76
 Negative attitude toward condom 6 Condom use is troublesome 0.87
 Self-efficacy in condom use (stable partner) 7 Persuade the partner to only have sex with a condom 0.87
 Self-efficacy in condom use (non-stable partner) 7 Persuade the partner to only have sex with a condom 0.83
Social influence measure
 Traditional gender norms 12 Ignorance is a virtue for women 0.73
 Peer discussion of prevention 7 Talk about HIV/STIs 0.86
 Peer support for condom use (stable partner) 4 My friends think I should carry condoms all the times just in case 0.84
 Peer support for condom use (non-stable partner) 4 My friends think I should carry condoms all the times just in case 0.85
 Lack of relationship power 7 To use or not to use a condom is up to my partner 0.69
 Venue support 11 The management team regularly reminds us of STD/HIV risks 0.86