Validity and Reliability of the Social Interaction Anxiety Scale (SIAS) and the Social Phobia Scale (SPS) Background: The Social Interaction Anxiety Scale (SIAS) and the Social Phobia Scale (SPS) are commonly used self-report instruments for social anxiety. Disorder-specific measures for social phobia are urgently needed considering the high prevalence of this anxiety disorder. The present study reports validity and reliability properties of the German version of both scales. Methods: 76 participants diagnosed with social phobia, 199 participants with panic disorder with/without agoraphobia or agoraphobia without a history of panic disorder, and 82 participants with other clinical disorders were included in the analyses. The patients were seeking treatment in the Christoph-Dornier Foundation for Clinical Psychology. The assessment procedure at the Foundation comprised a structured clinical interview and a battery of questionnaires. SPS und SIAS were part of this battery. Results: The results indicate that the scales have good internal consistency, adequate convergent, but inadequate discriminant validity with similar/different measures of anxiety and mood disturbances and they sensitively measure treatment change. Both scales discriminated between the clinical samples. However, the classification performance decreased significantly when all three samples were considered. A factor analysis did not support the originally theoretically derived uniformity of the scales. Conclusions: These findings confirm the utility of the questionnaires only in part. It is recommended to complete the assessment of social anxiety with other questionnaires like the Social Phobia and Anxiety Inventory (SPAI).

This content is only available via PDF.
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.