Abstract
Objective: The purpose of this study was to develop a Preventive Behavioral Intention Scale for sexually transmitted infections on Japanese university students(PBIS).
Methods: In the first survey, 335 Japanese university students(male=177, female=158) were distributed a questionnaire composed of socio-demographical items (sex, age, sexual intercourse experience, frequency of condom use) and 7 items of the PBIS. These 7 items were derived from the Sexual Risks Scale (DeHart & Birkimer,1997) which were translated English into Japanese. In the second survey, 422 Japanese university students (male=136, female=286) were distributed a questionnaire composed of socio-demographical items and 5 items of the PBIS which was newly developed based on the results of the first survey. Confirmatory Factor Analysis, Stepwise factor analysis, Cronbach's alpha reliability analysis, Omega reliability analysis, Multiple-group analysis were conducted in developing the PBIS. Further, a simple linear regression analysis was also conducted to examine the relationship between PBIS and condom use behavior.
Results: The results showed that PBIS had one factor solution with 5 items with satisfactory reliability (alpha=0.829, omega=0.829) and structural validity (GFI=0.981, AGFI=0.945, CFI=0.981, RMSEA=0.084). The result of the Multiple-group analysis confirmed the factor invariance between male and female. The score of PBIS was positively correlated with the condom use behavior (R2=0.321).
Conclusion: These results suggested that PBIS is possible to assess preventive behavioral intention for sexually transmitted infections. This scale is useful scale to evaluate an effect of the protective education for Japanese university students who have not experienced sexual behavior yet.
