Qualitative Theory and Chemical Explanation.

Roald Hoffmann and other theorists claim that we ought to use highly idealized chemical models ("qualitative models") in order to increase our understanding of chemical phenomena, even though other models are available which make more highly accurate predictions. I assess this norm by examining one...

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Bibliographic Details
Published in:Philosophy of Science Vol. 71; no. 5; pp. 1071 - 1082
Main Author: Weisberg, Michael
Format: Article
Published: Cambridge University Press Dec2004
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Online Access:View this record in EBSCOhost
Description
Summary:Roald Hoffmann and other theorists claim that we ought to use highly idealized chemical models ("qualitative models") in order to increase our understanding of chemical phenomena, even though other models are available which make more highly accurate predictions. I assess this norm by examining one of the tradeoffs faced by model builders and model users-the tradeoff between precision and generality. After arguing that this tradeoff obtains in many cases, I discuss how the existence of this tradeoff can help us defend Hoffmann's norm for modelling.