The Constancy of the Intelligence Quotient of Mental Defectives

out the Goddard scores, the error arising from their re-evaluation according to Terman was eliminated. Since the results of tests by several different examiners were used, due to rather frequent changes in personnel, the ever-present question of the personal equation is opened. It is impossible to say how much effect differences in leniency of testing may have had on the results, but it is to be hoped that the number of examiners may have served to offset individual differences.