Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/105713
Title: Psychometric properties of the modified tonic immobility scale
Author: Bados López, Arturo
Peró, Maribel
Keywords: Traumes psíquics
Psicometria
Psychic trauma
Psychometrics
Issue Date: 2015
Publisher: Universidad de Murcia
Abstract: 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.
Note: Reproducció del document publicat a: https://doi.org/10.6018/analesps.31.1.158071
It is part of: Anales de Psicología, 2015, vol. 31, num. 1, p. 66-73
Related resource: https://doi.org/10.6018/analesps.31.1.158071
URI: http://hdl.handle.net/2445/105713
ISSN: 0212-9728
Appears in Collections:Articles publicats en revistes (Psicologia Clínica i Psicobiologia)
Articles publicats en revistes (Psicologia Social i Psicologia Quantitativa)

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