Cortisol and 5-HIAA can also be measured from urine. Levels of these chemicals are correlated with criminal behaviour, hostility and aggression. A Maharishi Ayur-Ved physician is trained determine imbalances and make dietary recommendations. Using the Loevinger Scale, researchers can determine the level of growth of the overall personality and ego of the offender. This test cannot be manipulated.
Many researchers regard it as a major indicator of healthy physiological functioning.
People who are field independent are able to maintain stable attitudes and judgments , without continuous reference to external standards, and they tend to have more interest in taking responsibility. They have higher self-esteem. Field independence is also positively correlated with coping ability. The Porteus Maze requires the subject to trace a path patiently through a complicated maze. Persons prone to delinquent behaviour do not perform well on this test.