Snowball sampling is a non-probability sampling technique that is used by researchers to identify potential subjects in studies where subjects are hard to locate.nowball sampling is a non-probability sampling technique that is used by researchers to identify potential subjects in studies where subjects are hard to locate.
In configuration management, a baseline is an agreed description of the attributes of a product, at a point in time, which serves as a basis for defining change. A change is a movement from this baseline state to a next state. The identification of significant changes from the baseline state is the central purpose of baseline identification.
First, know the patient's baseline. For example, if a person's baseline temperature is around 97 degrees, a temp of 100 degrees is more concerning than in a person with a normal baseline temperature of 98.6 degrees Farenheit. The same idea applies to heart rate, blood pressure, and daily function.