Does the Chinese version of 20-item Toronto alexithymia scale (TAS-20-C) measure alexithymia in Chinese young adolescents? Evidence from confirmatory factor analysis, network analysis, and latent profile analysis

Abstract The 20-item Toronto Alexithymia Scale (TAS-20) is a measure of three components of alexithymia: difficulty identifying feelings (DIF), difficulty describing feelings (DDF), and externally oriented thinking (EOT). Although TAS-20 is being increasingly used to measure the alexithymia construc...

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Main Authors: Yuhan Ni, Shuanghu Fang
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Psychology
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Online Access:https://doi.org/10.1186/s40359-025-03028-w
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author Yuhan Ni
Shuanghu Fang
author_facet Yuhan Ni
Shuanghu Fang
author_sort Yuhan Ni
collection DOAJ
description Abstract The 20-item Toronto Alexithymia Scale (TAS-20) is a measure of three components of alexithymia: difficulty identifying feelings (DIF), difficulty describing feelings (DDF), and externally oriented thinking (EOT). Although TAS-20 is being increasingly used to measure the alexithymia construct, ongoing controversies remain regarding its internal structure and cross-cultural and cross-group applicability. This study evaluated the psychometric properties of the Chinese version of TAS-20 (TAS-20-C) among 1,355 Chinese young adolescents (mean age = 13.13; SD = 1.00; 52.6% boys) through multiple analytic approaches (i.e., confirmatory factor analysis, network analysis, and latent profile analysis). The confirmatory factor analysis showed reasonable goodness-of-fit for the bi-factorial model with three-dimensional structure and a negatively keyed item factor. However, the results derived from all analytic approaches suggested several items with poor psychometric properties (items 5, 10, 16, 18, 19, 20 from EOT and item 12 from DDF), including poor factor loading on their intended factor, low connectivity and predictability in the item network, and insufficient discrimination across heterogeneous groups. These issues could be attributed to an overabundance of negatively keyed items, translation biases, and the poor readability of certain items. The findings highlight the need for targeted revisions to both the wording and the content for these items, and offer insights into higher priority interventions aimed at improving alexithymia.
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spelling doaj-art-722a641783d0480c991798214421c25a2025-08-20T04:01:43ZengBMCBMC Psychology2050-72832025-07-0113111610.1186/s40359-025-03028-wDoes the Chinese version of 20-item Toronto alexithymia scale (TAS-20-C) measure alexithymia in Chinese young adolescents? Evidence from confirmatory factor analysis, network analysis, and latent profile analysisYuhan Ni0Shuanghu Fang1School of Educational Science, Anhui Normal UniversitySchool of Educational Science, Anhui Normal UniversityAbstract The 20-item Toronto Alexithymia Scale (TAS-20) is a measure of three components of alexithymia: difficulty identifying feelings (DIF), difficulty describing feelings (DDF), and externally oriented thinking (EOT). Although TAS-20 is being increasingly used to measure the alexithymia construct, ongoing controversies remain regarding its internal structure and cross-cultural and cross-group applicability. This study evaluated the psychometric properties of the Chinese version of TAS-20 (TAS-20-C) among 1,355 Chinese young adolescents (mean age = 13.13; SD = 1.00; 52.6% boys) through multiple analytic approaches (i.e., confirmatory factor analysis, network analysis, and latent profile analysis). The confirmatory factor analysis showed reasonable goodness-of-fit for the bi-factorial model with three-dimensional structure and a negatively keyed item factor. However, the results derived from all analytic approaches suggested several items with poor psychometric properties (items 5, 10, 16, 18, 19, 20 from EOT and item 12 from DDF), including poor factor loading on their intended factor, low connectivity and predictability in the item network, and insufficient discrimination across heterogeneous groups. These issues could be attributed to an overabundance of negatively keyed items, translation biases, and the poor readability of certain items. The findings highlight the need for targeted revisions to both the wording and the content for these items, and offer insights into higher priority interventions aimed at improving alexithymia.https://doi.org/10.1186/s40359-025-03028-wAlexithymiaTAS-20Psychometric propertiesConfirmatory factor analysisNetwork analysisLatent profile analysis
spellingShingle Yuhan Ni
Shuanghu Fang
Does the Chinese version of 20-item Toronto alexithymia scale (TAS-20-C) measure alexithymia in Chinese young adolescents? Evidence from confirmatory factor analysis, network analysis, and latent profile analysis
BMC Psychology
Alexithymia
TAS-20
Psychometric properties
Confirmatory factor analysis
Network analysis
Latent profile analysis
title Does the Chinese version of 20-item Toronto alexithymia scale (TAS-20-C) measure alexithymia in Chinese young adolescents? Evidence from confirmatory factor analysis, network analysis, and latent profile analysis
title_full Does the Chinese version of 20-item Toronto alexithymia scale (TAS-20-C) measure alexithymia in Chinese young adolescents? Evidence from confirmatory factor analysis, network analysis, and latent profile analysis
title_fullStr Does the Chinese version of 20-item Toronto alexithymia scale (TAS-20-C) measure alexithymia in Chinese young adolescents? Evidence from confirmatory factor analysis, network analysis, and latent profile analysis
title_full_unstemmed Does the Chinese version of 20-item Toronto alexithymia scale (TAS-20-C) measure alexithymia in Chinese young adolescents? Evidence from confirmatory factor analysis, network analysis, and latent profile analysis
title_short Does the Chinese version of 20-item Toronto alexithymia scale (TAS-20-C) measure alexithymia in Chinese young adolescents? Evidence from confirmatory factor analysis, network analysis, and latent profile analysis
title_sort does the chinese version of 20 item toronto alexithymia scale tas 20 c measure alexithymia in chinese young adolescents evidence from confirmatory factor analysis network analysis and latent profile analysis
topic Alexithymia
TAS-20
Psychometric properties
Confirmatory factor analysis
Network analysis
Latent profile analysis
url https://doi.org/10.1186/s40359-025-03028-w
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