The Driver-Inventory (DI) can be administered in two ways.

  1. Over the Internet. The DI is also available over the Internet on our online testing platform Tests can be purchased one at a time, or in any quantity desired. Tests are available 24/7.
  2. On 3 1/2” diskettes or USB flash drives. Diskettes or USB flash drives come pre-loaded with 25 or 50 tests, whichever the test user prefers. Visit for more information.

Whether tests are on diskettes, USB flash drives or provided online (over the Internet), DI reports look the same (format), are computer scored, and are evidence-based.

The goal from the beginning has been to develop practical, helpful and psychometrically sound instruments, or tests: practical, in the sense that the DI can be completed in a reasonable amount of time; helpful, in terms of providing useful information; and psychometrically sound, with regard to reliability, validity and accuracy.

Behavior Data Systems, Ltd.
P.O. Box 44256
Phoenix, Arizona 85064-4256

Telephone: 1 (800) 231-2401