Body voltage testing â also called skin voltage testing â is the most sensitive, accurate and helpful method available to detect electric fields. This is a very important measurement, especially for sensitive individuals.
An outlier can be created by a shift in the location. (mean) or in the scale (variability) of the process. Though an observation in a particular sample might be a. candidate as an outlier, the process might have shifted. Sometimes, the spurious result is a gross recording. error or a measurement error.
Outliers from data errors. Outliers are often caused by human error, such as errors in data collection, recording, or. entry. Data from an interview can be recorded incorrectly, or miskeyed upon data entry. One survey the first author.