Information on tBBT and TAPES Outcome Measure

Targeted Box and Block Test (tBBT)

The FDA updated the tBBT design after consultation with clinicians and patients. The feedback resulted in a few key design changes to the tBBT including (1) the use of a 3x3 pattern instead of a 4x4 pattern to give prosthesis users more space to manipulate blocks and (2) numbering of blocks and target spaces to reduce mental demand during task.

You can visit the tBBT FDA page, where you will find the YouTube instructional video, the Instructions for Use, and a 2D drawing of the exact dimensions of the inserts.