(the following I am using by permission from an acquaintance at The University of South Dakota. We do not know the origin of this test, and would like any info you might have. Thanks! Have fun!)

These shapes were developed by a psychologist. They have been tested worldwide, over a period of several years. As we received feedback from our research, we carefully adjusted the color and/or form of each shape, then tested again, until we were left with a highly successful set of shapes. These represent the nine basic personality types.