Here's the words of the Examinator, "Mr. Jones obtained a full scale iq score of 58, which would classify him in the mental retardation range. However, I am not comfortable assigning this diagnosis, because of his appeared lack of effort likely impacting his true scores. Does this fall into malingering, and this test is thrown out or maybe retesting? Mr. Jones does appear to be experiencing symptoms of major depressive disorder. Aging has to play a part in low iq, and medication.