Abstract: The present invention relates to an upper extremity assessment device usable to test individuals for functional capacity of their upper extremities. The device includes a first support having a first opening. The first support may further include a second opening. A second support with an opening is selectively mounted to the first support, in a perpendicular manner. The openings in the first support and in the second support receive work plates usable in the assessment of the individual. Work plates made from material transparent to visible light are provided to facilitate observation of activity on both sides of each work plate. Structure is provided to selectively mount each work plate in the desired opening. The device itself may be mounted to an assessment rack in a plurality of orientations and a plurality of heights relative to the ground. A variety of assessments may be performed using each work plate.