A comparison of the Herrmann Brain Dominance Instrument(TM) and the Extended DISCRTM Behavior Profiling Tool: An attempt to create a more discerning management perspective

This study investigates the relationship between the Herrmann Brain Dominance Instrument (HBDI)---a thinking preference assessment tool---and the Extended DISC---a behavior preference assessment tool. The study consisted of two parts: the analysis of an expert opinion survey of both HBDI and Extended DISC practitioners; and a sample set of HBDI and Extended DISC assessments, which were jointly completed by the individual participants. The expert opinion survey was used to establish that the two tools are similar, but not the same. The results of the expert opinion survey were as also used to construct a model comparison, which contributes to the validity of the two tools. The basic structure of the model comparison was confirmed by also constructing a model comparison using the individual assessment data. The analysis individual assessment data suggests a definable relationship between thinking and behavior, and it also suggests that the environment may be a major defining factor in behavior.