The underestimation (righting) of frame-of-reference tilt correlates with the perception of the vertical rod as tilted in the opposite direction (the rod-and-frame effect). The rod-and-frame effect can be thought of as the solution to the problem of the rod's tilt given the perceived tilt of the frame. (Author/PN)

This study presents data augmenting the validity studies of the Wheatley Cube (McDaniel and Kroll, 1984), a computer managed test of spatial visualization. Twenty-one students in pilot training are administered several instruments designed to measure the ability to construct a cognitive three-dimensional space, including: (1) the Wheatley Cube,…