We have already touched on the term validity of a model in various sections of this book, and we have emphasized that it is a means to measure the degree of dependability up to which a model is well-founded. This interpretation is justified by the etymological roots of the word; and if we agree to use the term in that sense it is not an absolute measure, but rather refers to a quality of a model characterized by degrees of validity. This is due to the fact that the foundations of scientific propositions (theories, hypotheses or models) are very subject-specific and vary from one field of research to the next, and even within each of those fields they depend on the stage of scientific progress and on the available evidence.
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Dr. Tibor Müller
Dr. Harmund Müller
- Springer Berlin Heidelberg
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