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Assessing the dimensionality of scores derived from the Revised Formal Thought Disorder Self-Report Scale in schizotypy

The current work explored the dimensionality and convergent validity of responses to Barrera et al.’s (2015) 29-item Formal Thought Disorder–Self Scale (FTD-SS) obtained in two non-clinical samples. Exploratory factor analyses were conducted in Sample 1 (n = 324), yielding evidence of three correlat...

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Autores principales: Sumner, Philip J., Meyer, Denny, Carruthers, Sean P., Amirul Islam, Fakir M., Rossell, Susan L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9733900/
https://www.ncbi.nlm.nih.gov/pubmed/36490258
http://dx.doi.org/10.1371/journal.pone.0278841
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author Sumner, Philip J.
Meyer, Denny
Carruthers, Sean P.
Amirul Islam, Fakir M.
Rossell, Susan L.
author_facet Sumner, Philip J.
Meyer, Denny
Carruthers, Sean P.
Amirul Islam, Fakir M.
Rossell, Susan L.
author_sort Sumner, Philip J.
collection PubMed
description The current work explored the dimensionality and convergent validity of responses to Barrera et al.’s (2015) 29-item Formal Thought Disorder–Self Scale (FTD-SS) obtained in two non-clinical samples. Exploratory factor analyses were conducted in Sample 1 (n = 324), yielding evidence of three correlated factors, although simple structure was not achieved until nine items were removed. Support for the correlated three factors model of responses to the revised 20-item scale (FTD-SS-R) was replicated when a confirmatory factor analysis was conducted in Sample 2 (n = 610). Finally, convergent associations were found between FTD-SS-R scores and scores from other schizotypy measures across both samples, though these measures only explained half of the variance in FTD-SS-R scores. Additional research is needed to evaluate the appropriateness of the items and incremental validity of the scale in non-clinical samples.
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spelling pubmed-97339002022-12-10 Assessing the dimensionality of scores derived from the Revised Formal Thought Disorder Self-Report Scale in schizotypy Sumner, Philip J. Meyer, Denny Carruthers, Sean P. Amirul Islam, Fakir M. Rossell, Susan L. PLoS One Research Article The current work explored the dimensionality and convergent validity of responses to Barrera et al.’s (2015) 29-item Formal Thought Disorder–Self Scale (FTD-SS) obtained in two non-clinical samples. Exploratory factor analyses were conducted in Sample 1 (n = 324), yielding evidence of three correlated factors, although simple structure was not achieved until nine items were removed. Support for the correlated three factors model of responses to the revised 20-item scale (FTD-SS-R) was replicated when a confirmatory factor analysis was conducted in Sample 2 (n = 610). Finally, convergent associations were found between FTD-SS-R scores and scores from other schizotypy measures across both samples, though these measures only explained half of the variance in FTD-SS-R scores. Additional research is needed to evaluate the appropriateness of the items and incremental validity of the scale in non-clinical samples. Public Library of Science 2022-12-09 /pmc/articles/PMC9733900/ /pubmed/36490258 http://dx.doi.org/10.1371/journal.pone.0278841 Text en © 2022 Sumner et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Sumner, Philip J.
Meyer, Denny
Carruthers, Sean P.
Amirul Islam, Fakir M.
Rossell, Susan L.
Assessing the dimensionality of scores derived from the Revised Formal Thought Disorder Self-Report Scale in schizotypy
title Assessing the dimensionality of scores derived from the Revised Formal Thought Disorder Self-Report Scale in schizotypy
title_full Assessing the dimensionality of scores derived from the Revised Formal Thought Disorder Self-Report Scale in schizotypy
title_fullStr Assessing the dimensionality of scores derived from the Revised Formal Thought Disorder Self-Report Scale in schizotypy
title_full_unstemmed Assessing the dimensionality of scores derived from the Revised Formal Thought Disorder Self-Report Scale in schizotypy
title_short Assessing the dimensionality of scores derived from the Revised Formal Thought Disorder Self-Report Scale in schizotypy
title_sort assessing the dimensionality of scores derived from the revised formal thought disorder self-report scale in schizotypy
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9733900/
https://www.ncbi.nlm.nih.gov/pubmed/36490258
http://dx.doi.org/10.1371/journal.pone.0278841
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