Software Licenses

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IRTPRO™ - Basic (6 months)

Purchasing a license for IRTPRO™ is easy. You can purchase and download a basic non-commercial, academic, and educational copy of IRTPRO™ from within My Account. Six month licenses are available for single users, one seat for $115 per year. If you would like to link multiple user accounts under one license, please contact us for more information. Please note that no technical support is provided with the basic version.
$115.00

IRTPRO™ - Basic (3 months)

Purchasing a license for IRTPRO™ is easy. You can purchase and download a basic non-commercial, academic, and educational copy of IRTPRO™ from within My Account. Annual licenses are available for single users, one seat for $65 for three months. If you would like to link multiple user accounts under one license, please contact us for more information. Please note that no technical support is provided with the basic version.
$65.00

flexMIRT® - Trial

Registered users have access to a single installation, two-week free trial. The trial version is a fully functional flexMIRT® software package. The free trial is offered to provide users with an opportunity to evaluate the program prior to purchase. Please note, the free versions of the software are for EVALUATION PURPOSES ONLY and come with no warranties and only limited technical support. Free trials are not to be used for commercial or operational purposes without the express written consent of Vector Psychometric Group, LLC.
$0.00

IRTPRO™ - Trial

Registered users have access to a single installation, two week free trial. The trial version is a fully functional IRTPRO software package. The free trial is offered to provide users with an opportunity to evaluate the program prior to purchase. Please note, the free versions of the software are for EVALUATION PURPOSES ONLY and come with no warranties and only limited technical support. Free trials are not to be used for commercial or operational purposes without the express written consent of Vector Psychometric Group, LLc. To become a registered user go to My Account to create an account. Once your account has been verified you will be able to download the trial software, purchase licenses, and review your existing license status.
$0.00

flexMIRT® - Operational

Entities interested in using flexMIRT® for operational purposes including, but not limited to, test/assessment calibration, scoring, linking or standard setting for a client, product, or student/employee evaluation should contact us for licensing options. Please note that these activities are not covered under the standard or academic end-user agreements.

IRTPRO™ - Operational

Entities interested in using IRTPRO™ for operational purposes including, but not limited to, test/assessment calibration, scoring, linking or standard setting for a client, product, or student/employee evaluation should contact us for licensing options. Please note that these activities are not covered under the standard or academic end-user agreements. Email: sales@vpgcentral.com Phone: 919.768.7142 Fax: 919.768.7134