title: Validity and Reliability of Knowledge, Attitude and Behavior Assessment Tool Among Vulnerable Women Concerning Sexually Transmitted Diseases.
abstract: OBJECTIVE
  The study aimed to design and evaluate the content and face validity, and reliability of knowledge, attitude, and behavior questionnaire on preventive behaviors among vulnerable women concerning sexually transmitted diseases (STDs).
  
  
  METHODS
  This cross-sectional study was carried out in two phases of an action research. In the first phase, to explain STDs preventive domains, 20 semi- structured interviews were conducted with the vulnerable women, residing at women prison and women referred to counseling centers. After analyzing content of interviews, three domains were identified: improve their knowledge, modify their attitude and change their behaviors. In the second phase, the questionnaire was designed and tested in a pilot study. Then, its content validity was evaluated. Face validity and reliability of the questionnaire were assessed by test re- test method and Cronbach alpha respectively.
  
  
  RESULTS
  Index of content validity in each three domain of the questionnaire (knowledge, attitude and behavior concerning STDs) was obtained over 0.6. Overall content validity index was 0.86 in all three domains of the questionnaire. The Cronbach's alpha as reliability of questionnaire was 0.80 for knowledge, 0.79 for attitude and 0.85 for behavior.
  
  
  CONCLUSIONS
  The results showed that the designed questionnaire was a valid and reliable tool to measure knowledge, attitude and behavior of vulnerable women, predisposed to risk of STDs.
authors.affiliation: Infectious Diseases and Tropical Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Boroumandfar
authors.affiliation: Nosocomial Infection Research Center, Department of Infectious Diseases, Medical School, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Farzin
authors.initials: F
authors.lastname: Khorvash
authors.affiliation: Behavioral Disease Council Center, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Katayoun
authors.initials: K
authors.lastname: Taeri
authors.affiliation: Psychosomatic Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Mahrdad
authors.initials: M
authors.lastname: Salehi
authors.affiliation: Department of Epidemiology and Biostatistics, School of Health, and Heart Failure Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Ghasem
authors.initials: G
authors.lastname: Yadegarfar
keywords: Attitude; Content Validity; Knowledge; Reliability; Sexually Transmitted Diseases