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.
Baseline Data. Once you have target behavior and behavioral definition you need to start taking baseline data. Baseline data has two purposes (1) to show function and (2) to determine if an improvement has been made. Basically baseline data is going to tell you what road to take and it will also make sure you are continuously on the right track. No baseline data = no map.