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Protocol - Toronto Alexithymia Scale (TAS-20)

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Protocol Name from Source:

This section will be completed when reviewed by an Expert Review Panel.

Availability:

Proprietary

Description:

The Toronto Alexithymia Scale (TAS-20) is a 20-item self-administered questionnaire that includes three subscales: difficulty identifying feelings (7 items-e.g., "I am often confused about what emotion I am feeling"), difficulty describing feelings (5 items-e.g., "It is difficult for me to reveal my innermost feelings, even to close friends"), and externally oriented thinking (8 items-e.g., "I prefer to analyze problems rather than just describe them"). Each item is scored on a 5-point, Likert-type scale (1 = strongly disagree; 5 = strongly agree), and five of the items are reverse-scored. Total scores can range from 20-100, with higher scores indicating greater impairment.

Protocol:

Description of the Toronto Alexithymia Scale (TAS-20)

The Toronto Alexithymia Scale (TAS-20) is a 20-item, self-administered questionnaire that includes three subscales: difficulty identifying feelings (7 items-e.g., "I am often confused about what emotion I am feeling"), difficulty describing feelings (5 items-e.g., "It is difficult for me to reveal my innermost feelings, even to close friends"), and externally oriented thinking (8 items-e.g., "I prefer to analyze problems rather than just describe them"). Each item is scored on a 5-point, Likert-type scale (1 = strongly disagree; 5 = strongly agree), and five of the items are reverse-scored. Total scores can range from 20-100, with higher scores indicating greater impairment.

Personnel and Training Required

None

Equipment Needs

None

Requirements

Requirement CategoryRequired
Average time of greater than 15 minutes in an unaffected individualNo
Major equipmentNo
Specialized requirements for biospecimen collectionNo
Specialized trainingNo

Mode of Administration

Self-administered

Life Stage:

Adult

Specific Instructions:

The Toronto Alexithymia Scale (TAS-20) is a proprietary instrument. Administration and use of the TAS-20 requires a licensing agreement from Dr. Graeme J. Taylor at the University of Toronto.

Research Domain Information

Release Date:

August 7, 2015

Definition

A questionnaire to assess alexithymia, a participant’s inability to identify and describe their own emotions.

Purpose

Alexithymia is associated with psychiatric conditions (e.g., autism, post-traumatic stress disorders, and eating disorders) and may influence a participant’s response to treatment.

Selection Rationale

The Toronto Alexithymia Scale (TAS-20) is a brief, reliable, valid, and widely used self-administered questionnaire for assessing alexithymia.

Language

Chinese, Danish, English, Greek, Hindi

Standards

StandardNameIDSource
Common Data Elements (CDE)Eating Disorder Emotional Awareness Scale Assessment Scale4926454CDE Browser

Process and Review

This section will be completed when reviewed by an Expert Review Panel.

Source

The Toronto Alexithymia Scale (TAS-20) is a proprietary instrument, and administration requires a licensing agreement from Dr. Graeme J. Taylor at the University of Toronto:

Dr. Graeme J. Taylor
104 Rosedale Heights Drive
Toronto
Ontario M4T 1C6
Canada
www.gtaylorpsychiatry.org/tas.htm

General References

Bagby, R. M., Ayearst, L. E., Morariu, R. A., Watters, C., & Taylor, G. J. (2014). The internet administration version of the 20-item Toronto alexithymia scale. Psychological Assessment, 26(1), 16-22.

Bagby, R. M., Parker, J. D., & Taylor, G. J. (1994). The twenty-item Toronto Alexithymia Scale-I. Item selection and cross-validation of the factor structure. Journal of Psychosomatic Research, 38(1), 23-32.

Bagby, R. M., Taylor, G. J., & Parker, J. D. (1994). The Twenty-item Toronto Alexithymia Scale-II. Convergent, discriminant, and concurrent validity. Journal of Psychosomatic Research, 38(1), 33-40.

Parker, J. D., Taylor, G. J., & Bagby, R. M (2003). The 20-Item Toronto Alexithymia Scale: III. Reliability and factorial validity in a community population. Journal of Psychosomatic Research, 55(3), 269-275.

Taylor, G. J., Bagby, R. M., & Parker, J. D. (2003). The 20-Item Toronto Alexithymia Scale. IV. Reliability and factorial validity in different languages and cultures. Journal of Psychosomatic Research, 55(3), 277-283.

Protocol ID:

650901

Variables:

Export Variables
Variable NameVariable IDVariable DescriptionVersiondbGaP Mapping
PX650901010000Protocol 650901 - proprietary. Check DCW for contact.4N/A