Abstract: The present invention relates to accurately measuring electrical readings. One embodiment of the present invention includes a method for measuring the electrical readings, recording the electrical readings to produce a relationship, correlating the relationship to a plurality of known mistakes, and then generating an accuracy level. The relationship may be a mathematical or graphical relationship among the measured electrical readings. The relationship can then be correlated to relationships that are produced when a particular measurement error is made. The probability that particular measurement errors were made can be determined such that an overall accuracy level can be quantified. In addition, the method may include suggesting corrective actions if the accuracy level indicates a high probability of measurement error. Another embodiment of the present invention includes a system for accurately measuring electrical readings.