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Structural validity of the Anxiety Symptom Scale – a Danish validation study.

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Title: Structural validity of the Anxiety Symptom Scale – a Danish validation study.
Authors: Pedersen, Henrik Schou (AUTHOR), Christensen, Karl Bang (AUTHOR), Prior, Anders (AUTHOR), Sparle Christensen, Kaj (AUTHOR)
Source: Nordic Journal of Psychiatry. Feb2025, Vol. 79 Issue 2, p166-174. 9p.
Subjects: Waiting rooms, Panic attacks, General practitioners, Association of ideas, Psychometrics, Anxiety disorders, Test anxiety
Abstract: Introduction: The Anxiety Symptom Scale (ASS) is a ten-item psychometric test, which is frequently used for screening purposes in Danish general practice. The ASS includes nine items on symptoms of anxiety disorders and one item on functional impairment caused by these symptoms. Previous research indicates that reducing the number of response categories may benefit the test and that it may provide a unidimensional measure of global anxiety. Methods: We made a modified version of the ASS with fewer response categories per item. We compared the structure of the two versions in a cohort of respondents recruited from three different settings: general practitioner during a consultation (setting 1), mental health associations (setting 2), and waiting room in a single general practice (setting 3). Results: Both versions were fitted to a bifactor model; the nine anxiety items loaded on a general factor, and the individual items addressing specific anxiety disorders loaded on their specific factor. The original version provided a better fit than the modified version. The model suggests that the ASS measures primarily a single underlying trait. Functional impairment was well predicted by the general factor. Conclusion: The first nine items of the ASS can be considered a unidimensional measure of global anxiety, showing a substantial correlation with functional impairment. This makes the instrument useful for general practitioners in making initial treatment decisions. The performance of the instrument did not improve by reducing the number of response categories or removing one of the panic anxiety attack items. [ABSTRACT FROM AUTHOR]
Copyright of Nordic Journal of Psychiatry is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Structural validity of the Anxiety Symptom Scale – a Danish validation study.
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  Data: <searchLink fieldCode="AR" term="%22Pedersen%2C+Henrik+Schou%22">Pedersen, Henrik Schou</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Christensen%2C+Karl+Bang%22">Christensen, Karl Bang</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Prior%2C+Anders%22">Prior, Anders</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sparle+Christensen%2C+Kaj%22">Sparle Christensen, Kaj</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Nordic+Journal+of+Psychiatry%22">Nordic Journal of Psychiatry</searchLink>. Feb2025, Vol. 79 Issue 2, p166-174. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Waiting+rooms%22">Waiting rooms</searchLink><br /><searchLink fieldCode="DE" term="%22Panic+attacks%22">Panic attacks</searchLink><br /><searchLink fieldCode="DE" term="%22General+practitioners%22">General practitioners</searchLink><br /><searchLink fieldCode="DE" term="%22Association+of+ideas%22">Association of ideas</searchLink><br /><searchLink fieldCode="DE" term="%22Psychometrics%22">Psychometrics</searchLink><br /><searchLink fieldCode="DE" term="%22Anxiety+disorders%22">Anxiety disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Test+anxiety%22">Test anxiety</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Introduction: The Anxiety Symptom Scale (ASS) is a ten-item psychometric test, which is frequently used for screening purposes in Danish general practice. The ASS includes nine items on symptoms of anxiety disorders and one item on functional impairment caused by these symptoms. Previous research indicates that reducing the number of response categories may benefit the test and that it may provide a unidimensional measure of global anxiety. Methods: We made a modified version of the ASS with fewer response categories per item. We compared the structure of the two versions in a cohort of respondents recruited from three different settings: general practitioner during a consultation (setting 1), mental health associations (setting 2), and waiting room in a single general practice (setting 3). Results: Both versions were fitted to a bifactor model; the nine anxiety items loaded on a general factor, and the individual items addressing specific anxiety disorders loaded on their specific factor. The original version provided a better fit than the modified version. The model suggests that the ASS measures primarily a single underlying trait. Functional impairment was well predicted by the general factor. Conclusion: The first nine items of the ASS can be considered a unidimensional measure of global anxiety, showing a substantial correlation with functional impairment. This makes the instrument useful for general practitioners in making initial treatment decisions. The performance of the instrument did not improve by reducing the number of response categories or removing one of the panic anxiety attack items. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Nordic Journal of Psychiatry is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1080/08039488.2025.2466642
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        Text: English
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      – SubjectFull: General practitioners
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      – SubjectFull: Psychometrics
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              Text: Feb2025
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