Evaluation of the structure of Brazilian State-Trait Anxiety Inventory using a Rasch psychometric approach

Abstract Objective This study evaluates the State-Trait Anxiety Inventory (STAI) structure using a Rasch psychometric approach, and a refined and shorter STAI version is proposed. Methods A cross-sectional study was performed with 900 inpatients scheduled for elective surgery. Age varied from 18 to...

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Veröffentlicht in:	Journal of psychosomatic research 2010-03, Vol.68 (3), p.223-233
Hauptverfasser:	Kaipper, Márcia Balle, Chachamovich, Eduardo, Hidalgo, Maria Paz Loayza, da Silva Torres, Iraci Lucena, Caumo, Wolnei
Format:	Artikel
Sprache:	eng
Schlagworte:	Adolescent Adult Anxiety Anxiety Disorders - diagnosis Brazil Cross-Sectional Studies Elective surgery Female Humans Male Middle Aged Psychiatry Psychometrics Psychometrics - methods Rasch analysis Rasch model Reproducibility of Results Severity of Illness Index STAI Surgery Surveys and Questionnaires Thresholds Young Adult
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