Read pp. 603–617 of Selected Reference 3.
(a) What does the author say about whether a model can be completely validated?
(b) Summarize the distinctions made between model validity, data validity, logical/mathematical validity, predictive validity, operational validity, and dynamic validity.
(c) Describe the role of sensitivity analysis in testing the operational validity of a model.
(d) What does the author say about whether there is a validation methodology that is appropriate for all models?
(e) Cite the page in the article that lists basic validation steps.