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© 2007-2013
David Cella, Ph.D.,
Richard Gershon, Ph.D.,
Michael Bass, M.S. &
Nan Rothrock, Ph.D.


Assessment CenterSM is a free, online data collection tool that enables researchers to create study-specific websites for capturing participant data securely online.

Studies can include measures within the Assessment Center library as well as custom instruments entered by the researcher. The instrument library includes self- and proxy-report short forms, computerized adaptive tests (CATs), and batteries or profiles from:

  • Patient-Reported Outcomes Measurement Information System (PROMIS)
  • Quality of Life in Neurological Diseases (Neuro-QoL)
  • NIH Toolbox
  • Health LiTT

Among other important features, Assessment Center also enables:

  • Downloading library instruments for administration on paper
  • Customization of items or instruments (e.g., format, randomization, skip patterns)
  • Real-time scoring of CATs and short forms
  • Storage of protected health information (PHI) in a separate, secure database
  • Automated accrual reports
  • Real-time data export
  • Ability to capture endorsement of online consent forms


Two special announcements for the NIH Toolbox user community:
  • Effective immediately, all new NIH Toolbox studies are encouraged to use the NIH Toolbox iPad App. The new NIH Toolbox iPad App includes the NIH Toolbox English Instruments and many PROMIS instruments in an easy to use format with significantly lower long-term costs (See: or Currently, the NIH Toolbox App is available for an introductory offer of 6-month access for $9.99. As of January, 2016 this offer will be replaced with a 60-day FREE trial period and an annual subscription fee of $499 per iTunes account. The subscription includes support for installation on up to 10 iPads.

  • As of January 2016 will no longer be available for new NIH Toolbox Cognition, Motor or Sensation studies. This decision was made given the existence of the new (and improved) NIH Toolbox administered using an iPad App, and due to the increasing costs of maintaining the web-based version of the NIH Toolbox. If necessary, ongoing NIH Toolbox studies may continue to use through at least August 2017. However, do note that starting September 1, 2016, ongoing NIH Toolbox studies using will be assessed $5,000 per year to offset the cost of operating the website.

Our commitment to supporting the NIH Toolbox community remains unchanged. We will be available to assist users with their transition from Assessment Center. We will help review individual study requirements to determine the best software tools for the administration of Toolbox instruments. Please contact us at to request additional information.