Zero gets a bad rap. Rarely in society does earning a zero amount to success, except when referring to Performance Based Monitoring Analysis System (PBMAS). PBMAS performance levels (PL), often referred to as "stages", range from "0" to "4"; with the zero being the highest standard of achievement and four being the lowest standard achievement. We are striving for "0" in all of the PBMAS indicators (areas of measured achievement).
It is important that we not only comprehend what an achievement instrument tool is evaluating, but also how the scale of an achievement should be read, instead of making assumptions. Sometimes, despite our belief system zero is a hero.