SciELO - Scientific Electronic Library Online

 
vol.34 issue2Burnout syndrome and associated factors among health professionals of a public hospitalNon-medical use of methylphenidate: a review author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Trends in Psychiatry and Psychotherapy

Print version ISSN 2237-6089

Abstract

CARVALHO, Lucas de Francisco; PRIMI, Ricardo  and  MEYER, Gregory J.. Application of the Rasch model in measuring personality disorders. Trends Psychiatry Psychother. [online]. 2012, vol.34, n.2, pp.101-109. ISSN 2237-6089.  https://doi.org/10.1590/S2237-60892012000200009.

OBJECTIVE: To describe item and person parameters obtained with the Rasch model, one of the item response theory models, in the assessment of personality disorders based on Millon's theory. METHOD: A total of 350 people participated in the study. Age ranged from 18 to 67 years (mean ± standard deviation = 27.02±10.13), and 71.7% of the participants (n = 251) were female. Of the 350 individuals, 21.1% (n = 74) answered affirmatively about being under psychiatric treatment and taking psychiatric medications. The Personality Disorders Dimensional Inventory (PDDI), an instrument designed to assess personality disorders according to Millon's theory, was applied to all participants. Data were analyzed using the Rasch model. RESULTS: Overall, analysis with the Rasch model revealed that the PDDI has adequate psychometric properties for the assessment of personality disorders. CONCLUSION: Among the contributions of item response theory models for clinical instruments, the Rasch person-item map deserves to be highlighted as a successful attempt to improve the understanding of clinical scores obtained in response to particular test items.

Keywords : Health evaluation; diagnosis; validation studies; psychiatric status rating scales.

        · abstract in Portuguese     · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License