Article

Reliability and validity of a short version of the STAI anxiety measurement scale in respiratory patients.

Departamento de Enfermería, Universidad de Alicante, Alicante, Spain.
Archivos de Bronconeumología (impact factor: 2.17). 03/2011; 47(4):184-9. DOI:10.1016/j.arbres.2010.11.006
Source: PubMed

ABSTRACT There is comorbidity between respiratory disease and anxiety. In order to measure the anxiety of hospitalized patients it is necessary to use reliable and valid, and preferably short questionnaires.
To analyze the reliability and validity of a shortened version of the state subscale of the “State-Trait Anxiety Inventory (STAI)” in respiratory patients.
A total of 103 respiratory patients admitted to the respiratory ward between February of 2009 and February of 2010 were non-consecutively selected. They answered two questionnaires: the Spanish version of the STAI-state and a short version consisting of 7 items. Sociodemographic and clinical variables of the patients were also obtained. The internal consistency, and convergent and construct validity of the short scale were analyzed.
The short scale did not have floor/ceiling effect, the α-Cronbach was acceptable (0.89), and correlated positively (r = 0.90; P = .01) and also maintained the factorial structure of the original scale (half anxiety-present items and half anxiety-absent items).
The short version of the state subscale of the STAI has showed good metric properties in hospitalized respiratory patients.

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Keywords

103 respiratory patients
 
7 items
 
anxiety-present items
 
clinical variables
 
convergent
 
factorial structure
 
good metric properties
 
original scale
 
preferably short questionnaires
 
respiratory
 
respiratory disease
 
respiratory patients
 
short scale
 
short version
 
shortened version
 
Spanish version
 
STAI-state
 
state subscale
 
use reliable
 
“State-Trait Anxiety Inventory