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Article #3563Re: Searching for Models
From: Allan Reese
Date: Mon, 27 Jan 1992 11:47
Date: Mon, 27 Jan 1992 11:47
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2051 bytes
I share the concern that modelling should be seen by students or "casual" users of statistical analysis as another area where black-box or sausage machine cookbook analyses can be applied. It is, I agree, far more difficult to persuade people to apply their brains to data and ask sensible questions in clear language - they think it's anti-academic. I addressed this problem in a conference paper (The Statistician 1986 Vol 35 pp 199-206) "Data Analysis: the need for models?" I distinguish between models that are purely descriptive and serve to reduce a body of data to a set of informative facts, models that are heuristic and reflect a theoretical basis, and models that are applied to make standard comparisons so that the same analysis will be used without confirming in every case that it is optimal for each individual dataset. The philosophical problem I see in model fitting is that you are always simultaneously using the particular data to justify the model and also the model to interpret the data. This is the distinction behind likelihood and probability. I suspect that most users of stat methods see themselves as using a tool to "extract the truth implicit in their data", rather than looking for support for a hypothesis that was generated in their mind before the data were collected.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f5efb,e5856ed0bab03434 X-Google-Attributes: gidf5efb,public X-Google-ArrivalTime: 1992-01-27 04:56:25 PST Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU Path: arc1-ca.pugleaf.net!sparky!uunet!europa.asd.contel.com!paladin.american.edu!auvm!SEQ.HULL.AC.UK!R.A.REESE Via: UK.AC.HULL.SEQ; 27 JAN 92 11:59:25 GMT X-Mailer: ELM [version 2.3 PL11] Original-Sender: R.A.Reese@uk.ac.hull.seq Message-ID: <STAT-L%92012707351707@VM1.MCGILL.CA> Newsgroups: bit.listserv.stat-l Date: Mon, 27 Jan 1992 11:47:02 WET Sender: "STATISTICAL CONSULTING" <STAT-L@MCGILL1.BITNET> From: Allan Reese <R.A.Reese@SEQ.HULL.AC.UK> Subject: Re: Searching for Models