A scale of human emotion. The full scale ranges from negative 40.0 all the way up to positive 40.0. From the most negative emotions at the bottom to the most positive emotions at the top, this is the most-used gradient scale in Scientology. It is one of the most important tools an auditor has. When she first starts auditing a preclear, the auditor gauges the preclear’s tone level. Knowing where a preclear is on the tone scale helps an auditor and case supervisor determine what processes can be most beneficial to the preclear.
A preclear can experience many emotions during a session. And with a good auditor and program, a preclear’s overall position on the tone scale will improve. By understanding the tone scale, an auditor can do a better job helping the person in front of her.
The tone scale is valuable in daily life as well. Anyone can benefit from learning about the tone scale. Doing so helps one understand and predict the behavior of the people around them better. The most practical part of the tone scale for use in daily life is the 0-4 range. (Ability Magazine 114A)
You can view an abridged Tone Scale in The Chart of Human Evaluation. Column A gives you the numbers associated with emotions. Columns F and G are good for initial study. For in-depth information on the 0-4 range of this scale and all the columns of The Chart of Human Eval, read Science of Survival (SOS). The Chart of Human Eval was originally published in the back of SOS in 1951.