Republished with permission of
Perceptual and Motor Skills, from “Mental Rotations, A Group Test of Thre
e-Dimensional Spatial Visualization,” by Steven G. Vandenberg and Allan R. Kuse, in Volume 47, Issue 2, October 1978: pp. 59
9–604 (doi:10.2466/pms.1978.47.2.599); permission conveyed through Copyright Clearance Center, Inc.