State of the Union Address with Bob Neveritt
Published July 15, 2009
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    The Tetrad, taken as a whole, is a manifestation of the human thinking process. As a exploratory probe, tetrads do not rest on a theory but a set of questions; they rely on empirical observation and are thus testable. When applied to new technologies or artifacts, they afford the user predictive power; in this sense as well they may be viewed as a scientific instrument.
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