Construct validity of the 20-item Toronto Alexithymia Scale (TAS–20) was investigated by analyzing natural language use. It was hypothesized that the TAS–20 should be related to a lower use of emotion words and fewer references to social processes. 32 clinical interviews with mental health outpatients were analyzed with four categories of the computerized Linguistic Inquiry and Word Count dictionary: positive emotions, negative emotions, references to others, and communication words. The Difficulty Identifying Feelings subscale was positively related to negative emotion words, the Difficulty Describing Feelings subscale showed no relevant associations, and the Externally Oriented Thinking subscale was related to reduced use of positive emotion words and social process words. It is concluded that in this sample, the Externally Oriented Thinking subscale provides the best operationalization of the alexithymia construct.
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References
1.
BagbyR. M.ParkerJ. D. A., & TaylorG. J. (1994) The twenty-item Toronto Alexithymia Scale–I. Item selection and cross-validation of the factor structure. Journal of Psychosomatic Research, 38, 23–32.
2.
BeckA. T.SteerR. A., & BrownG. K. (1996) Manual for the Beck Depression Inventory.San Antonio, TX: Psychological Corp.
3.
CiarrochiJ. V., & DeaneF. P. (2001) Emotional competence and willingness to seek help from professional and nonprofessional sources. British Journal of Guidance and Counseling, 29, 233–246.
4.
FonagyP.GergelyG.JuristE. L., & TargetM. (2002) Affect regulation, mentalization, and the development of the self.New York: Other Press.
5.
GroomC. J., & PennebakerJ. W. (2002) Words. Journal of Research in Personality, 36, 615–621.
6.
HendryxM. S.HavilandM. G., & ShawD. G. (1991) Dimensions of alexithymia and their relationships to anxiety and depression. Journal of Personality Assessment, 56, 227–237.
7.
HonkalampiK.HintikkaJ.SaarinenP.LehtonenJ., & ViinamäkiH. (2000) Is alexithymia a permanent feature in depressed patients? Results from a 6-month follow-up study. Psychotherapy and Psychosomatics, 69, 303–308.
8.
KooimanC. G.SpinhovenP., & TrisburgR. W. (2002) The assessment of alexithymia: a critical review of the literature and a psychometric study of the Toronto Alexithymia Scale-20. Journal of Psychosomatic Research, 53, 1083–1090.
9.
LaneR. D.AhernG. L.SchwartzG. E., & KaszniakA. W. (1997) Is alexithymia the emotional equivalent of blindsight?Biological Psychiatry, 42, 834–844.
10.
LumleyM. A. (2000) Alexithymia and negative emotional conditions. Journal of Psychosomatic Research, 49, 51–54.
11.
MartyP., & de M'UzanM. (1963) La pensée opératoire. Revue Française de Psychanalyse, 27, 345–356.
12.
MeganckR.VanheuleS., & DesmetM. (2008) Factorial validity and measurement invariance of the 20-item Toronto Alexithymia Scale in clinical and non-clinical samples. Assessment, 15, 36–47.
13.
MeyerG. J.FinnS. E.EydeL. D.KayG. G.MorelandK. L.DiesR. R.EismanE. J.KubiszynT. W., & ReedG. M. (2001) Psychological testing and psychological assessment: a review of evidence and issues. American Psychologist, 56, 128–165.
14.
NemiahJ. C., & SifneosP. E. (1970) Psychosomatic illness: a problem in communication. Psychotherapy and Psychosomatics, 18, 154–160.
15.
NisbettR. E., & WilsonT. D. (1977) Telling more than we can know: verbal reports on mental processes. Psychological Review, 84, 231–259.
16.
PáezD.VelascoC., & GonzalezJ. L. (1999) Expressive writing and the role of alexithymia as a dispositional deficit in self-disclosure and psychological health. Journal of Personality and Social Psychology, 77, 630–641.
17.
PennebakerJ. W.FrancisM. E., & BoothR. J. (2001) Linguistic Inquiry and Word Count.Mahwah, NJ: Erlbaum. (LIWC manual and computer software)
18.
PennebakerJ. W.MehlM. R., & NiederhofferK. (2003) Psychological aspects of natural language use: our words, our selves. Annual Review of Psychology, 54, 547–577.
19.
RiefW.HeuserJ., & FichterM. M. (1996) What does the Toronto Alexithymia Scale TAS–R measure?Journal of Clinical Psychology, 52, 423–429.
20.
RoedemaT. M., & SimonsR. F. (1999) Emotion-processing deficit in alexithymia. Psychophysiology, 36, 379–387.
21.
SaarijärviS.SalminenJ. K., & ToikkaT. B. (2001) Alexithymia and depression: a 1-year follow-up study in outpatients with major depression. Journal of Psychosomatic Research, 51, 729–733.
22.
ScheidtC. E.WallerE.SchnockC.Becker-StollF.ZimmermannP.LückingC. H., & WirschingM. (1999) Alexithymia and attachment representation in idiopathic spasmodic torticollis. The Journal of Nervous and Mental Disease, 187, 47–52.
23.
SifneosP. E. (1973) Prevalence of alexithymic characteristics in psychosomatic patients. Psychotherapy and Psychosomatics, 22, 255–262.
24.
SifneosP. E. (1987) Anhedonia and alexithymia: a potential correlation? In ClarkD. C. & FawcetJ. (Eds.), Anhedonia and affect deficit states.New York: PMA Publ. Pp. 119–127.
25.
SpitzerC.Siebel-JürgesU.BarnowS.GrabeH. J., & FreybergerH. J. (2005) Alexithymia and interpersonal problems. Psychotherapy and Psychosomatics, 74, 240–246.
26.
TaylorG. J.BagbyR. M., & ParkerJ. D. A. (1997) Disorders of affect regulation.Cambridge, UK: Cambridge Univer. Press.
27.
TaylorG. J.BagbyR. M., & ParkerJ. D. A. (2003) The 20-item Toronto Alexithymia Scale: IV. Reliability and factorial validity in different languages and cultures. Journal of Psychosomatic Research, 55, 277–283.
28.
TaylorG. J., & DoodyK. (1985) Verbal measures of alexithymia: what do they measure. Psychotherapy and Psychosomatics, 43, 32–37.
29.
TullM. T.MedagliaE., & RoemerL. (2005) An investigation of the construct validity of the 20-item Toronto alexithymia scale through the use of a verbalization task. Journal of Psychosomatic Research, 59, 77–84.
30.
Van der DoesA. J. W. (2002) Handleiding bij de Nederlandse versie van de Beck Depression Inventory (BDI-II-NL). (2nd ed.) Lisse, The Netherlands: Swets Test Publishers.
31.
VanheuleS. (2008) Challenges for alexithymia research: a commentary to “The construct of alexithymia: associations with defence mechanisms.”Journal of Clinical Psychology, 64, 332–337.
32.
VanheuleS.DesmetM.GroenvynckH.RosseelY., & FontaineJ. (2008) The factor structure of the Beck Depression Inventory-II: an evaluation. Assessment, 15, 177–187.
33.
VanheuleS.DesmetM.MeganckR., & BogaertsS. (2007) Alexithymia and interpersonal problems. Journal of Clinical Psychology, 63, 109–117.
34.
WallerE., & ScheidtC. E. (2004) Somatoform disorders as disorders of affect regulation: a study comparing the TAS-20 with non-self-report measures of alexithymia. Journal of Psychosomatic Research, 57, 239–247.
35.
WatsonD.ClarkL. A., & TellegenA. (1988) Development and validation of brief measures of positive and negative affect: the PANAS scales. Journal of Personality and Social Psychology, 54, 1063–1070.
36.
WestenD.MuderrisogluS.FowlerC.ShedlerJ., & KorenD. (1997) Affect regulation and affective experience: individual differences, group differences, and measurement using a q-sort procedure. Journal of Consulting and Clinical Psychology, 65, 429–439.
37.
WiseT. N.KheriatyA. D., & SheridanM. J. (2004) Attribution of cause by patients with depression, anxiety, and alexithymia. Psychological Reports, 94, 259–263.
38.
YelsmaP.HovestadtA. J.NilssonJ. E., & PaulB. D. (1998) Clients' positive and negative expressiveness within their families and alexithymia. Psychological Reports, 82, 563–569.
39.
ZijlstraH.van MeerveldT.van MiddendorpH.PennebakerJ. W., & GeenenR. (2004) De Nederlands versie van de ‘Linguistic Inquiry and Word Count’ (LIWC): een gecomputeriseerd tekstanalyseprogramma. Gedrag en Gezondheid, 32, 271–281.
40.
ZijlstraH.van MiddendorpH.van MeerveldT., & GeenenR. (2005) Validiteit van de Nederlandse versie van de Linguistic Inquiry and Word Count. Nederlands Tijdschrifi voor Psychologie, 60, 55–63.
