Rasch scalability of the somatosensory distribution approach
- Publication type:
- Journal article
- Metadata:
-
- Autoren
- Fabian Jasper
- Urs M Nater
- Wolfgang Hiller
- Ulrike Ehlert
- Susanne Fischer
- Michael Witthoeft
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000320297800002&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1016/j.jpsychores.2013.02.006
- eISSN
- 1879-1360
- Externe Identifier
- Clarivate Analytics Document Solution ID: 162WX
- PubMed Identifier: 23731743
- ISSN
- 0022-3999
- Ausgabe der Veröffentlichung
- 6
- Zeitschrift
- JOURNAL OF PSYCHOSOMATIC RESEARCH
- Schlüsselwörter
- Somatosensory amplification scale
- Mixture distribution analysis
- Partial credit model
- Rating scale model
- Somatization
- Paginierung
- 469 - 478
- Datum der Veröffentlichung
- 2013
- Status
- Published
- Titel
- Rasch scalability of the somatosensory distribution approach
- Sub types
- Article
- Ausgabe der Zeitschrift
- 74
Data source: Web of Science (Lite)
- Other metadata sources:
-
- Autoren
- Fabian Jasper
- Urs M Nater
- Wolfgang Hiller
- Ulrike Ehlert
- Susanne Fischer
- Michael Witthöft
- DOI
- 10.1016/j.jpsychores.2013.02.006
- ISSN
- 0022-3999
- Ausgabe der Veröffentlichung
- 6
- Zeitschrift
- Journal of Psychosomatic Research
- Sprache
- en
- Paginierung
- 469 - 478
- Datum der Veröffentlichung
- 2013
- Status
- Published
- Herausgeber
- Elsevier BV
- Herausgeber URL
- http://dx.doi.org/10.1016/j.jpsychores.2013.02.006
- Datum der Datenerfassung
- 2019
- Titel
- Rasch scalability of the somatosensory amplification scale: A mixture distribution approach
- Ausgabe der Zeitschrift
- 74
Data source: Crossref
- Abstract
- <h4>Objective</h4>Somatosensory amplification refers to a person's tendency to experience somatic sensations as inappropriately intense and involves hypervigilance concerning bodily sensations. We applied the Somatosensory Amplification Scale (SSAS) in an Internet sample of young adults (N=3031) to test whether the SSAS is Rasch scalable.<h4>Methods</h4>We applied mixture distribution extensions of the partial credit and rating scale models to identify possible subgroups that use the response set of the SSAS in different ways.<h4>Results</h4>A partial credit model, with two latent classes, showed a superior fit to all other models. Still, one of the SSAS items had to be removed because it showed severe underfit. Overall fit of the remaining items was acceptable, although the differentiation between at least two of the five item categories was questionable in both classes. Class 1 was characterized by a higher SSAS sum score, female gender, more somatic complaints, more anxiety, more psychosocial stress, and slightly higher depressiveness. Further exploratory analyses showed that the three mid categories of the SSAS can be collapsed without a large loss of information.<h4>Conclusions</h4>Our results show that a shortened version of the SSAS is Rasch scalable but also reveal that there is a lot of room for further improvements of the scale. Based on our results, Item 1 should be removed from the scale and a reduction of the number of response categories is probably warranted.
- Addresses
- Department of Clinical Psychology, Johannes Gutenberg University, Germany. jasper@uni-mainz.de
- Autoren
- Fabian Jasper
- Urs M Nater
- Wolfgang Hiller
- Ulrike Ehlert
- Susanne Fischer
- Michael Witthöft
- DOI
- 10.1016/j.jpsychores.2013.02.006
- eISSN
- 1879-1360
- Externe Identifier
- PubMed Identifier: 23731743
- Open access
- false
- ISSN
- 0022-3999
- Ausgabe der Veröffentlichung
- 6
- Zeitschrift
- Journal of psychosomatic research
- Schlüsselwörter
- Humans
- Sensitivity and Specificity
- Sensation
- Somatoform Disorders
- Psychometrics
- Adult
- Female
- Male
- Symptom Assessment
- Surveys and Questionnaires
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2013
- Paginierung
- 469 - 478
- Datum der Veröffentlichung
- 2013
- Status
- Published
- Datum der Datenerfassung
- 2013
- Titel
- Rasch scalability of the somatosensory amplification scale: a mixture distribution approach.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 74
Data source: Europe PubMed Central
- Abstract
- OBJECTIVE: Somatosensory amplification refers to a person's tendency to experience somatic sensations as inappropriately intense and involves hypervigilance concerning bodily sensations. We applied the Somatosensory Amplification Scale (SSAS) in an Internet sample of young adults (N=3031) to test whether the SSAS is Rasch scalable. METHODS: We applied mixture distribution extensions of the partial credit and rating scale models to identify possible subgroups that use the response set of the SSAS in different ways. RESULTS: A partial credit model, with two latent classes, showed a superior fit to all other models. Still, one of the SSAS items had to be removed because it showed severe underfit. Overall fit of the remaining items was acceptable, although the differentiation between at least two of the five item categories was questionable in both classes. Class 1 was characterized by a higher SSAS sum score, female gender, more somatic complaints, more anxiety, more psychosocial stress, and slightly higher depressiveness. Further exploratory analyses showed that the three mid categories of the SSAS can be collapsed without a large loss of information. CONCLUSIONS: Our results show that a shortened version of the SSAS is Rasch scalable but also reveal that there is a lot of room for further improvements of the scale. Based on our results, Item 1 should be removed from the scale and a reduction of the number of response categories is probably warranted.
- Date of acceptance
- 2013
- Autoren
- Fabian Jasper
- Urs M Nater
- Wolfgang Hiller
- Ulrike Ehlert
- Susanne Fischer
- Michael Witthöft
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/23731743
- DOI
- 10.1016/j.jpsychores.2013.02.006
- eISSN
- 1879-1360
- Ausgabe der Veröffentlichung
- 6
- Zeitschrift
- J Psychosom Res
- Schlüsselwörter
- Adult
- Female
- Humans
- Male
- Psychometrics
- Sensation
- Sensitivity and Specificity
- Somatoform Disorders
- Surveys and Questionnaires
- Symptom Assessment
- Sprache
- eng
- Country
- England
- Paginierung
- 469 - 478
- PII
- S0022-3999(13)00048-2
- Datum der Veröffentlichung
- 2013
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2014
- Titel
- Rasch scalability of the somatosensory amplification scale: a mixture distribution approach.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 74
Data source: PubMed
- Beziehungen:
- Property of