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Details
Purpose
Evaluates decision making mediated by the prefrontal cortex
Authors
Antoine Bechara, PhD
Administration Formats
Additional Details
Evaluate Decision Making Skills
The IGT2 is an 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.
- Administration and scoring are available on PARiConnect. Learn more in our technical paper.
- Learn how to administer the IGT2 remotely in our whitepaper.
The test 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; PARiConnect 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.
- Convenient. Administer and score via PARiConnect.
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FAQs
What is the technical information for the IGT™2?
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.
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.
- Presence of the examiner in the room provides a social context that is important for performance; without the examiner’s presence, the examinee may perform differently.
- If the starting amount of cash or currency has been altered, the examiner must alter the instructions to reflect the correct amount and/or currency type.
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