Cognitive dysfunction related to impairment to the frontal cortex of the brain is assessed through the use of two well-accepted neurological tests, the Stroop Color-Word Test and the Trail Making Test. Specific information regarding the Trail-making Test can be found in another codebook section. The dimensions tapped by the Stroop have been associated with cognitive flexibility, resistance to interference from outside stimuli, creativity, psychopathology and cognitive complexity (see Golden, 1978).