Abstract: A fitness for duty (FFD) testing device and method for determining fitness for duty using a testing unit that is held in two hands by a human test subject. Two handles are provided for holding the unit which includes a video screen with an image of a moving shape on a surface. The position of the shape on the screen is determined by the orientation of the hand-held unit. Tilting the unit by the test subject results in the shape moving on the screen. The device computes a score which can be compared to historical results for the test subject, and to results from a larger population base. The FFD device may be programmed to present increasing levels of difficulty as test subject learning occurs, and can receive and provide data to external computing, printing, display, network, or storage devices.