Lawrence A. Dombrose and Morton S. Slobin, "The IES Test," Perceptual and Motor Skills 8, 1958


The IES Test is designed to give measurements of the relative strengths of impulses, ego, and superego, and to estimate the effects of impulse and superego forces upon ego functioning. Thus, the ego, or cognitive, processes are assessed as they interact with the other processes of the personality, the impulse and superego structures.

All problems, with the exception of 10, 16, and 20, are scored I, E, or S. The scoring key indivates the most common types of routes drawn from the arrows to the dots. Minor departures from these solutions are permissible in terms of direction or distance, or in the form of drawing to the right or left, top or bottom of an arrow or barrier, provided distance to the dot is not increased.