title: Psychometric properties of a shortened version of the Physical Self-Concept Questionnaire (PSQ-S).
abstract: BACKGROUND
  The four-dimensional model of physical self-concept which differentiates the physical self-perceptions of ability, condition, attractiveness and strength is widely accepted. In the last two decades much research has been done on the physical self-concept and its relations with the psychological well-being/distress, anxiety disorders or Eating Behavior Disorders (EBD).
  
  
  OBJECTIVE
  To validate a shortened version of the Physical Self-Concept Questionnaire (PSQ-S) and verify its ability to discriminate between people with different levels of EBD.
  
  
  METHODS
  Responses of 1478 subjects between 13 and 21 years old to the shortened version of the PSQ were analyzed in order to check indexes of reliability and validity. Furthermore, the scores of 96 women aged 14 to 23 years old diagnosed of EBD were compared to 96 others without clinical diagnosis.
  
  
  RESULTS
  The results indicate a reliability of 0.93 and confirm the tetrafactorial structure of the physical selfconcept. The highest physical self-concept is that of those without a clinical diagnosis of EBD.
  
  
  CONCLUSIONS
  The Shortened-PSQ is a simple, reliable and suitable screening tool both for educational and clinical settings. It also provides a sufficient measure of physical self-concept for research purposes.
authors.affiliation: Universidad del País Vasco (UPV/EHU).
authors.forename: Arantzazu
authors.initials: A
authors.lastname: Rodríguez-Fernández
authors.affiliation: Universidad del País Vasco (UPV/EHU).
authors.forename: Inge
authors.initials: I
authors.lastname: Axpe
authors.affiliation: Universidad del País Vasco (UPV/EHU).
authors.forename: Alfredo
authors.initials: A
authors.lastname: Goñi
mesh_terms: D000293:Adolescent; D001068:Feeding and Eating Disorders / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D011594:Psychometrics; D015203:Reproducibility of Results; D012649:Self Concept; D057566:Self Report; D055815:Young Adult