title: Reliability and validity of the Sedentary Behavior Questionnaire (SBQ) for adults.
abstract: BACKGROUND
  Sedentary behavior is related to obesity, but measures of sedentary behaviors are lacking for adults. The purpose of this study was to examine the reliability and validity of the Sedentary Behavior Questionnaire (SBQ) among overweight adults.
  
  
  METHODS
  Participants were 49 adults for the 2 week test-retest reliability study (67% female, 53% white, mean age = 20) and 401 overweight women (mean age = 41, 61% white) and 441 overweight men (mean age = 44, 81% white) for the validity study. The SBQ consisted of reports of time spent in 9 sedentary behaviors. Outcomes for validity included accelerometer measured inactivity, sitting time (International Physical Activity Questionnaire), and BMI. Intraclass correlation coefficients (ICCs) assessed reliability and partial correlations assessed validity.
  
  
  RESULTS
  ICCs were acceptable for all items and the total scale (range = .51-.93). For men, there were significant relationships of SBQ items with IPAQ sitting time and BMI. For women, there were relationships between the SBQ and accelerometer inactivity minutes, IPAQ sitting time, and BMI.
  
  
  CONCLUSIONS
  The SBQ has acceptable measurement properties for use among overweight adults. Specific measures of sedentary behavior should be included in studies and population surveillance.
authors.affiliation: Joint Doctoral Program in Clinical Psychology, San Diego State University and the University of California-San Diego, CA, USA.
authors.forename: Dori E
authors.initials: DE
authors.lastname: Rosenberg
authors.forename: Gregory J
authors.initials: GJ
authors.lastname: Norman
authors.forename: Nicole
authors.initials: N
authors.lastname: Wagner
authors.forename: Kevin
authors.initials: K
authors.lastname: Patrick
authors.forename: Karen J
authors.initials: KJ
authors.lastname: Calfas
authors.forename: James F
authors.initials: JF
authors.lastname: Sallis
mesh_terms: D000328:Adult; D016552:Ergometry; D015444:Exercise / Q000502:physiology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D009765:Obesity / Q000209:etiology*; D012737:Sex Factors; D011795:Surveys and Questionnaires