Psychometric properties of the modified tonic immobility scale

The Tonic Immobility Scale has been only studied in abuse and/or sexual assault survivors, but tonic immobility (TI) also occurs after other types of traumatic events. Consequently, we modified the scale for this purpose and studied its factor structure, internal consistency, and convergent, discrim...

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Authors: Bados López, Arturo, Peró, Maribel
Format: article
Status:Published version
Publication Date:2015
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/105713
Online Access:https://hdl.handle.net/2445/105713
Access Level:Open access
Keyword:Traumes psíquics
Psicometria
Psychic trauma
Psychometrics
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spelling Psychometric properties of the modified tonic immobility scaleBados López, ArturoPeró, MaribelTraumes psíquicsPsicometriaPsychic traumaPsychometricsThe Tonic Immobility Scale has been only studied in abuse and/or sexual assault survivors, but tonic immobility (TI) also occurs after other types of traumatic events. Consequently, we modified the scale for this purpose and studied its factor structure, internal consistency, and convergent, discriminant and criterion validity in 392 university students, most of whom had suffered one or more traumatic events of various kinds. The Fear subscale of the Modified Tonic Immobility Scale (MTIS) showed very low internal consistency, and must be eliminated or reformulated. Discrimination indices of items 5 and 8 were very low, and these items must be reformulated or removed. After removing the five previous items, the shortened version of the MTIS had a one-factor structure, although model fit was not completely satisfactory. This scale showed acceptable levels of reliability, convergent validity with post-traumatic symptomatology, discriminant validity with measures of depression and anxiety, and criterion validity differentiating between groups that had and had not experienced traumatic events. The psychometric properties of the shortened version of the MTIS should be studied further. It may also be advisable to add new items of TI in order to establish whether this is a construct with more than one dimension.Universidad de Murcia2017201720152017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion8 p.application/pdfhttps://hdl.handle.net/2445/105713Articles publicats en revistes (Psicologia Clínica i Psicobiologia)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.6018/analesps.31.1.158071Anales de Psicología, 2015, vol. 31, num. 1, p. 66-73https://doi.org/10.6018/analesps.31.1.158071cc-by-nc-nd (c) Universidad de Murcia, 2015http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1057132026-05-29T05:05:01Z
dc.title.none.fl_str_mv Psychometric properties of the modified tonic immobility scale
title Psychometric properties of the modified tonic immobility scale
spellingShingle Psychometric properties of the modified tonic immobility scale
Bados López, Arturo
Traumes psíquics
Psicometria
Psychic trauma
Psychometrics
title_short Psychometric properties of the modified tonic immobility scale
title_full Psychometric properties of the modified tonic immobility scale
title_fullStr Psychometric properties of the modified tonic immobility scale
title_full_unstemmed Psychometric properties of the modified tonic immobility scale
title_sort Psychometric properties of the modified tonic immobility scale
dc.creator.none.fl_str_mv Bados López, Arturo
Peró, Maribel
author Bados López, Arturo
author_facet Bados López, Arturo
Peró, Maribel
author_role author
author2 Peró, Maribel
author2_role author
dc.subject.none.fl_str_mv Traumes psíquics
Psicometria
Psychic trauma
Psychometrics
topic Traumes psíquics
Psicometria
Psychic trauma
Psychometrics
description The Tonic Immobility Scale has been only studied in abuse and/or sexual assault survivors, but tonic immobility (TI) also occurs after other types of traumatic events. Consequently, we modified the scale for this purpose and studied its factor structure, internal consistency, and convergent, discriminant and criterion validity in 392 university students, most of whom had suffered one or more traumatic events of various kinds. The Fear subscale of the Modified Tonic Immobility Scale (MTIS) showed very low internal consistency, and must be eliminated or reformulated. Discrimination indices of items 5 and 8 were very low, and these items must be reformulated or removed. After removing the five previous items, the shortened version of the MTIS had a one-factor structure, although model fit was not completely satisfactory. This scale showed acceptable levels of reliability, convergent validity with post-traumatic symptomatology, discriminant validity with measures of depression and anxiety, and criterion validity differentiating between groups that had and had not experienced traumatic events. The psychometric properties of the shortened version of the MTIS should be studied further. It may also be advisable to add new items of TI in order to establish whether this is a construct with more than one dimension.
publishDate 2015
dc.date.none.fl_str_mv 2015
2017
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/105713
url https://hdl.handle.net/2445/105713
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.6018/analesps.31.1.158071
Anales de Psicología, 2015, vol. 31, num. 1, p. 66-73
https://doi.org/10.6018/analesps.31.1.158071
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Universidad de Murcia, 2015
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Universidad de Murcia, 2015
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8 p.
application/pdf
dc.publisher.none.fl_str_mv Universidad de Murcia
publisher.none.fl_str_mv Universidad de Murcia
dc.source.none.fl_str_mv Articles publicats en revistes (Psicologia Clínica i Psicobiologia)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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