Sorry, but how about a system that actually uses replicated random sampling that the rest of field science has required to estimate variance for decades now? (wattsupwiththat.com)
A Mass Audubon educator will provide teacher training in field science methods and meet you and your students in coastal habitats on the North Shore to explore and collect data. (massaudubon.org)
Standing in front of five professors for an hour and a half, chalk in hand, blackboard blank, bowels clenched, preparing to field science questions, has to be one of the most harrowing experiences of a grad student's life. (sciencemag.org)