Dr. Peter Hatemi, a Professor of Political Science at Penn State, stated that conservatives express more issues of psychoticism, which he defined as " uncooperative, hostile, troublesome, and socially withdrawn, but lack feelings of inferiority and have an absence of anxiety. At the extremes, those scoring high on P are manipulative, tough-minded, and practical." He also claims that the counterparts of these conservatives [the left] is more likely to be altruistic, well socialized, empathic, and conventional. However upon review he accidentally switched data points around and should have labeled liberals with the adjectives he labeled conservatives with. Presented with this information, he claimed that it did not change his conclusion.