Right and left cerebral hemisphere and limbic scores derived from the Herrmann Brain Dominance Profile were correlated with left, right, and integrated scores from the Torrance-Reynolds Your Style of Learning and Thinking and four cognitive style scores from the Kolb Learning Style Inventory. Coefficients from 40 students in occupational therapy indicated low moderate positive relationships between like-named hemisphere scores, lack of significant relationships between cognitive style and two independent measures of hemispheric preference, and relative independence of preferred hemisphere mode as well as relative independence between cerebral and limbic systems. The data are interpreted as requiring cautious concern about the validity of these measures by potential users.