title: The blood donor identity survey: a multidimensional measure of blood donor motivations.
abstract: BACKGROUND
  Evidence indicates that donor identity is an important predictor of donation behavior; however, prior studies have relied on diverse, unidimensional measures with limited psychometric support. The goals of this study were to examine the application of self-determination theory to blood donor motivations and to develop and validate a related multidimensional measure of donor identity.
  
  
  METHODS
  Items were developed and administered electronically to a sample of New York Blood Center (NYBC) donors (n=582) and then to a sample of Ohio University students (n=1005). Following initial confirmatory factor analysis (CFA) on the NYBC sample to identify key items related to self-determination theory's six motivational factors, a revised survey was administered to the university sample to reexamine model fit and to assess survey reliability and validity.
  
  
  RESULTS
  Consistent with self-determination theory, for both samples CFAs indicated that the best fit to the data was provided by a six-motivational-factor model, including amotivation, external regulation, introjected regulation, identified regulation, integrated regulation, and intrinsic regulation.
  
  
  CONCLUSIONS
  The Blood Donor Identity Survey provides a psychometrically sound, multidimensional measure of donor motivations (ranging from unmotivated to donate to increasing levels of autonomous motivation to donate) that is suitable for nondonors as well as donors with varying levels of experience. Future research is needed to examine longitudinal changes in donor identity and its relationship to actual donation behavior.
authors.affiliation: Department of Psychology, Ohio University, Athens, Ohio.
authors.forename: Christopher R
authors.initials: CR
authors.lastname: France
authors.forename: Jennifer M
authors.initials: JM
authors.lastname: Kowalsky
authors.forename: Janis L
authors.initials: JL
authors.lastname: France
authors.forename: Lina K
authors.initials: LK
authors.lastname: Himawan
authors.forename: Debra A
authors.initials: DA
authors.lastname: Kessler
authors.forename: Beth H
authors.initials: BH
authors.lastname: Shaz
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001782:Blood Donors / Q000523:psychology*; D003625:Data Collection; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009042:Motivation; D009518:New York; D009820:Ohio; D026684:Personal Autonomy; D012380:Role; D012649:Self Concept; D012933:Social Identification; D012945:Social Values; D013334:Students / Q000523:psychology; D011795:Surveys and Questionnaires; D055815:Young Adult