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 Testing refers to neurocognitive testing under normal conditions before injury, often conducted in the pre-season. The baseline test provides a snapshot of how oneâs brain functions in normal, everyday circumstances. Baseline testing is conducted on-site at schools by trained school staff with assistance from athletic trainers trained as test administrators by the Nebraska Sports Concussion Network.