This article has four distinct but related purposes. First, we describe the research setting for assessing human information processing style in terms of the rationalintuitive complementarity. We highlight earlier management study that directly deals with this dimension. Then we review popular instruments for assessing style in rational-intuitive terms. Second, we outline a conceptual model that elaborates the rational-intuitive styles of human information processing into three modes each. There are innovative management studies, and Eastern and Western philosophical bases for this model. We use this background to help synthesize three lines of neurophysiological research to formulate a six-mode human information processing (HIP) metaphor. Third, we use the HIP metaphor to develop an HIP survey with a scale for each mode. This section describes how conceptual definitions are derived from the model with guidance from the rational-intuitive term pairs and the survey item pool. Fina...