Validation of the electronic Visual Analogue Scale of Anxiety

Currently, the use of electronic scales is increasing rapidly, which is not surprising considering its accuracy, the ease of use and the increased compliance. The value of Visual Analogue Scales as a mean to objectify subjective variables has long been recognised. The current study aimed to validate...

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Bibliographic Details
Published in:Progress in neuro-psychopharmacology & biological psychiatry 2008-05, Vol.32 (4), p.1045-1047
Main Authors: van Duinen, Marlies, Rickelt, Judith, Griez, Eric
Format: Article
Language:English
Subjects:
35% CO 2 inhalation
Adolescent
Adult
Adult and adolescent clinical studies
Aged
Anxiety - chemically induced
Anxiety - diagnosis
Anxiety - psychology
Anxiety disorders. Neuroses
Biological and medical sciences
Carbon Dioxide
Electronic data processing
Female
Humans
Male
Medical sciences
Microcomputers
Middle Aged
Neuropharmacology
Panic disorder
Panic Disorder - psychology
Pharmacology. Drug treatments
Psychiatric Status Rating Scales
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Visual analogue scale
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Summary:Currently, the use of electronic scales is increasing rapidly, which is not surprising considering its accuracy, the ease of use and the increased compliance. The value of Visual Analogue Scales as a mean to objectify subjective variables has long been recognised. The current study aimed to validate the electronic Visual Analogue Scale of Anxiety (eVAAS). Seventy-one subjects, control subjects ( n = 46) and Panic Disorder patients ( n = 25), filled out the paper VAAS and the eVAAS in a randomised order. Panic was provoked using 35% CO 2 inhalation allowing us to include maximal scores in our analyses. The correlation between eVAAS and pVAAS was very strong and highly significant ( r = 0.98, p < 0.001). pVAAS scores were slightly higher than eVAAS scores ( p < 0.001), but this difference is clinically unimportant. The VAAS established on a tablet PC is a useful and valid measure of anxiety and holds intrinsic benefits for anxiety assessment.
ISSN:0278-5846
1878-4216
DOI:10.1016/j.pnpbp.2008.02.002