David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
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Biology and Philosophy 6 (2):155-180 (1991)
Scientists use a variety of modes of representation in their work, but philosophers have studied mainly sentences expressing propositions. I ask whether diagrams are mere conveniences in expressing propositions or whether they are a distinct, ineliminable mode of representation in scientific texts. The case of path analysis, a statistical method for quantitatively assessing the relative degree of causal determination of variation as expressed in a causal path diagram, is discussed. Path analysis presents a worst case for arguments against eliminability since path diagrams are usually presumed to be mathematically or logically “equivalent” in an important sense to sets of linear path equations. I argue that path diagrams are strongly generative, i.e., that they add analytical power to path analysis beyond what is supplied by linear equations, and therefore that they are ineliminable in a strong scientific sense.
|Keywords||Path analysis regression scientific diagrams Sewall Wright statistics in biology|
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References found in this work BETA
Nancy Cartwright (1983). How the Laws of Physics Lie. Oxford University Press.
Nancy Cartwright (1989). Nature's Capacities and Their Measurement. Oxford University Press.
Pierre Maurice Marie Duhem (1954). The Aim and Structure of Physical Theory. Princeton, Princeton University Press.
Nelson Goodman (1968). Languages of Art. Bobbs-Merrill.
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