title: Psychometric evaluation of the Positions on Nursing Diagnosis scale.
abstract: OBJECTIVE
  To study the psychometric properties of the Positions on Nursing Diagnosis (PND) scale.
  
  
  BACKGROUND
  The PND is a scale to measure nurses' attitudes toward nursing diagnosis. In previous studies, reliability of the scale was supported but its construct validity is still unclear with studies reporting both one-factor and three-factor models.
  
  
  METHODS
  A cross-sectional study was conducted with a convenience sample of 262 nurses enrolled from one general public hospital and three long-term care facilities in Italy. Construct validity was assessed with confirmatory factor analysis. Criterion and contrasting-group validities were tested, as well as internal consistency reliability.
  
  
  RESULTS
  Confirmatory factor analysis showed the adequacy of a one-factor model of the PND scale. Criterion and contrasting-group validities were supportive, as was internal consistency reliability.
  
  
  CONCLUSIONS
  The PND is a valid and reliable scale to measure nurses' attitudes toward nursing diagnosis. Its use in practice and research is recommended.
authors.affiliation: Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy. Electronic address: fabio.d.agostino@uniroma2.it.
authors.forename: Fabio
authors.initials: F
authors.lastname: D'Agostino
authors.affiliation: Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.
authors.forename: Ercole
authors.initials: E
authors.lastname: Vellone
authors.affiliation: S. Eugenio Hospital, Rome, Italy.
authors.forename: Erminio
authors.initials: E
authors.lastname: Cerro
authors.affiliation: Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Di Sarra
authors.affiliation: University of San Jorge, Zaragoza, Spain.
authors.forename: Raúl
authors.initials: R
authors.lastname: Juárez-Vela
authors.affiliation: Department of Psychology, "Sapienza" University, Rome, Italy.
authors.forename: Valerio
authors.initials: V
authors.lastname: Ghezzi
authors.affiliation: Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.
authors.forename: Maurizio
authors.initials: M
authors.lastname: Zega
authors.affiliation: Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.
authors.forename: Rosaria
authors.initials: R
authors.lastname: Alvaro
mesh_terms: D001291:Attitude of Health Personnel; D003430:Cross-Sectional Studies; D009726:Nurses / Q000523:psychology; D009733:Nursing Diagnosis; D011594:Psychometrics
keywords: Attitude of health personnel; Factor analysis; Italy; Nursing diagnosis; Psychometrics; Scale