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Can alexithymia be assessed in adolescents? Psychometric properties of the 20-item Toronto Alexithymia Scale in younger, middle, and older adolescents.
Psychol Assess. 2010 Dec; 22(4):798-808.PA

Abstract

The 20-item Toronto Alexithymia Scale (TAS-20; Bagby, Parker, & Taylor, 1994; Bagby, Taylor, & Parker, 1994) is the most widely used self-report measure of the alexithymia construct. The TAS-20 comprises 3 factors that assess difficulty identifying feelings, difficulty describing feelings, and externally oriented thinking. Although the instrument is being increasingly used with adolescent respondents, the psychometric properties of the TAS-20 have not been systematically evaluated in preadult populations. In the present study, we examined measurement invariance of the factor structure, internal reliability, and mean levels of responses on the TAS-20 in groups of younger adolescents (aged 13-14 years), middle adolescents (aged 15-16 years), and older adolescents (aged 17-18 years), as well as in a comparison group of young adults (aged 19-21 years). Formal readability analysis of the TAS-20 assessment was also conducted. Results revealed systematic age differences in the factor structure and psychometric properties of the TAS-20, with the quality of measurement progressively deteriorating with younger age. Much of this effect could be attributed to the reading difficulty of the scale. The use of the TAS-20 with teenage respondents is not recommended without appropriate adaptation and further psychometric validation. Several adaptation strategies are discussed.

Authors+Show Affiliations

Department of Psychology, Trent University, Peterborough, Ontario, Canada. jparker@trentu.caNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20804260

Citation

Parker, James D A., et al. "Can Alexithymia Be Assessed in Adolescents? Psychometric Properties of the 20-item Toronto Alexithymia Scale in Younger, Middle, and Older Adolescents." Psychological Assessment, vol. 22, no. 4, 2010, pp. 798-808.
Parker JD, Eastabrook JM, Keefer KV, et al. Can alexithymia be assessed in adolescents? Psychometric properties of the 20-item Toronto Alexithymia Scale in younger, middle, and older adolescents. Psychol Assess. 2010;22(4):798-808.
Parker, J. D., Eastabrook, J. M., Keefer, K. V., & Wood, L. M. (2010). Can alexithymia be assessed in adolescents? Psychometric properties of the 20-item Toronto Alexithymia Scale in younger, middle, and older adolescents. Psychological Assessment, 22(4), 798-808. https://doi.org/10.1037/a0020256
Parker JD, et al. Can Alexithymia Be Assessed in Adolescents? Psychometric Properties of the 20-item Toronto Alexithymia Scale in Younger, Middle, and Older Adolescents. Psychol Assess. 2010;22(4):798-808. PubMed PMID: 20804260.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Can alexithymia be assessed in adolescents? Psychometric properties of the 20-item Toronto Alexithymia Scale in younger, middle, and older adolescents. AU - Parker,James D A, AU - Eastabrook,Jennifer M, AU - Keefer,Kateryna V, AU - Wood,Laura M, PY - 2010/9/1/entrez PY - 2010/9/2/pubmed PY - 2011/4/30/medline SP - 798 EP - 808 JF - Psychological assessment JO - Psychol Assess VL - 22 IS - 4 N2 - The 20-item Toronto Alexithymia Scale (TAS-20; Bagby, Parker, & Taylor, 1994; Bagby, Taylor, & Parker, 1994) is the most widely used self-report measure of the alexithymia construct. The TAS-20 comprises 3 factors that assess difficulty identifying feelings, difficulty describing feelings, and externally oriented thinking. Although the instrument is being increasingly used with adolescent respondents, the psychometric properties of the TAS-20 have not been systematically evaluated in preadult populations. In the present study, we examined measurement invariance of the factor structure, internal reliability, and mean levels of responses on the TAS-20 in groups of younger adolescents (aged 13-14 years), middle adolescents (aged 15-16 years), and older adolescents (aged 17-18 years), as well as in a comparison group of young adults (aged 19-21 years). Formal readability analysis of the TAS-20 assessment was also conducted. Results revealed systematic age differences in the factor structure and psychometric properties of the TAS-20, with the quality of measurement progressively deteriorating with younger age. Much of this effect could be attributed to the reading difficulty of the scale. The use of the TAS-20 with teenage respondents is not recommended without appropriate adaptation and further psychometric validation. Several adaptation strategies are discussed. SN - 1939-134X UR - https://www.unboundmedicine.com/medline/citation/20804260/Can_alexithymia_be_assessed_in_adolescents_Psychometric_properties_of_the_20_item_Toronto_Alexithymia_Scale_in_younger_middle_and_older_adolescents_ L2 - http://content.apa.org/journals/pas/22/4/798 DB - PRIME DP - Unbound Medicine ER -