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.
You have your target behavior and definition â now you need to take some baseline data. Baseline data is data you take before you start an intervention. This will show you where to start and let you know if your intervention has actually been helpful. This will also help determine what the function of the behavior is.