There has been some discussion in the literature concerning whether homogeneous or heterogeneous design teams produce the better results. This study compares the performances of three aspects of the design process as produced by 81 student teams. The teams are categorized by the Myers-Briggs Type Indicators of their members. The more personality homogeneous teams produced the better quality work. Hence, the study has added some support to the argument that homogeneous teams may be preferable, at least for relatively short projects. However, there are many factors besides similar of personalities, such as past academic performance, age, gender mix, ethnic mix, and work experience, that may affect team performance. Therefore it would be a mistake to assume that forming teams based on personality type alone will significantly and uniformly affect their performances.

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