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 Studies. A comprehensive understanding of the physical, chemical, biological, and social environment provides the foundation to a well-executed environmental assessment. Well-planned and executed studies enhance project efficiencies through increased acceptability by regulators, financing bodies, Aboriginal groups, and communities.