title: Development and Psychometric Evaluation of a Socioeconomic Status Questionnaire for Urban Households (SESIran): The Preliminary Version.
abstract: BACKGROUND
  The aim of present study was to develop and validate an appropriate socioeconomic status (SES) assessment questionnaire to be used through health studies in Iranian urban households.
  
  
  METHODS
  The study was conducted through a mixed method study design in Tabriz, northwest of Iran in 2014. It was conducted in several stages including: development of initial version, qualitative study, feasibility evaluation, and assessment of the validity as well as the reliability. The internal consistency, test-retest reliability, content validity, concurrent validity and construct validity were assessed.
  
  
  RESULTS
  With respect to the assessment of construct validity, 5 domains (factors) were extracted includ-ing: main factor (α=0.84), self-evaluation of expenditure capacity (α=0.96), wealth (α=0.70), home and furniture (α=0.66) and costs related to health (α=0.55). Intraclass correlation coefficient was above 0.6 for all factors except for wealth domain.
  
  
  CONCLUSIONS
  The questionnaire developed appeared to be a valid and reliable SES assessment tool. It may be of value to be used not only as a complementary questionnaire in most health surveys or clini-cal studies, but also as a main questionnaire in health equity and health economics research.
authors.affiliation: Department of Biostatistics & Epidemiology, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Omid
authors.initials: O
authors.lastname: Abobakri
authors.affiliation: Road Traffic Injury Research Center, Statistics & Epidemiology Department, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Homayoun
authors.initials: H
authors.lastname: Sadeghi-Bazargani
authors.affiliation: Medical Education Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Asghari-Jafarabadi
authors.affiliation: Department of Social Science, University of Tabriz, Tabriz, Iran.
authors.forename: Mohammad Bagher
authors.initials: MB
authors.lastname: Alizadeh Aghdam
authors.affiliation: Iranian Center of Health Management (IceHM), Department of Health Services Management, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Imani
authors.affiliation: Department of Health Services Management, Health Services Management Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Jafarsadegh
authors.initials: J
authors.lastname: Tabrizi
authors.affiliation: Department of Public Health, Islamic Azad University of Tabriz Branch, Tabriz, Iran.
authors.forename: Shaker
authors.initials: S
authors.lastname: Salarilak
authors.affiliation: Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Mostafa
authors.initials: M
authors.lastname: Farahbakhsh
keywords: Health; Household; Reliability; SESIran; Socioeconomic Status; Validity