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IGT™2

Iowa Gambling Task™, Version 2

Antoine Bechara, PhD

Purpose:
Evaluates decision making mediated by the prefrontal cortex
Format:
Download
Age range:
8 years to 79 years
Time:
5-10 minutes
Qualification level:
C
C
All qualifications for Level B plus an advanced professional degree that provides appropriate training in the administration and interpretation of psychological tests, or license or certification from an agency that requires appropriate training and experience in the ethical and competent use of psychological tests. Close

NEW! Learn how to administer the IGT2 remotely in our new white paper. Click the Resources tab above or here. 

The IGT2 is a computerized assessment that assists in the evaluation of decision making. This revision reflects a downward age extension to age 8 years, allowing for use throughout the life span.

The software tracks the examinee’s selection of advantageous and disadvantageous cards from four decks and is ideal for assessing patients who exhibit poor decision-making skills in the presence of otherwise normal or unaffected intelligence because of head injury or insult or any other condition thought to affect the function of the prefrontal cortex. 

It features a real-time gambling task that resembles real-world situations. The task factors reward and punishment—the winning and losing of money—in such a way that it creates a conflict between immediate reward and delayed punishment, engaging the participant in a quest to make advantageous choices. As in real life, the task offers choices that may be risky, but there is no obvious indication of how, when, or what to choose. The only way an individual can do well on this task is to follow his or her intuition.

Features and benefits

  • Immediate results. The task is carried out in real time; the program can generate a Score Report and T-score and raw score profiles as soon as the examinee has finished the task.
  • Customizable. Several optional settings can be customized by the examiner prior to administration, including number of trials (i.e., card selections), inter-trial interval, type of currency, and starting amount of money.
  • Flexible. Two export formats are available, enabling flexibility with data management. In addition, the program’s import feature enables you to import data from previous versions of the IGT.

Test structure

  • The IGT2 produces a Total Net Score and net scores for each block of 20 cards/trials. In addition, you can examine the total number of cards selected from each deck and the total amount of money won. A trial-by-trial table displays deck choice, amount won, amount lost, total money, and time for each trial.
  • Normative scores are produced automatically; you can compare the examinee’s scores to those of a demographically corrected sample or to those of a U.S. Census-matched sample.

Technical information

The original IGT has been used in studies examining decision-making capacity in a variety of populations, including individuals with focal brain lesions, substance addiction, chronic pain, aggression disorders, and Huntington’s disease.

 

A comprehensive list of research articles related to the IGT and IGT2 is available via Mendeley, a free reference management tool. After accessing the link, you will be prompted to create an account. A white paper describing how to use this research repository can be found here. Use of this resource is encouraged to facilitate research using the IGT2. Both the list and the white paper are available in the Resources tab above.

 

 

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