Observe data collection at the moment of measurement See, observe, learn how data are collected at moment and place of measurement. "You never learn more about a process than when you directly observe how data are actually measured," said Cuthbert Daniel, a superb applied statistician. See with fresh eyes. Walk around what you want to learn about. Talk to those who do measurements. See how numbers came to be. Do those measuring know the desired answer? Are those measuring skilled, alert, honest, biased, incompetent, sloppy, tired and emotional?...Artifacts and errors in measurements measured? How are outliers adjudicated? Edward Tufte, Seeing With Fresh Eyes uxmeasurement
The blind men and the elephant A Proverb "I see" said the first, grasping a leg, "an elephant is like a tree." "I see" said the second, holding the tail, "an elephant is like a snake." Another, feeling the ear, said "an elephant is surely much like a thick carpet." The blind men who felt the elephantThe group of blind mullahs holism