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Article #70

Regression and bootstrap query

#70
From: Michael Kubovy
Date: Fri, 24 Jul 1992 09:23
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I have a designed experiment in which each of 50 subjects responds to
a figure in each of 180 orientations. For each subject I perform a
robust linear regression of the subject's reaction time, rt
(to a property of that figure) on the figure's orientation.
I have one rt per orientation.

I would like to use bootstrapping to estimate the s.e. of the slope
and the intercept of each subject.

Because the regressor is not subject to
error, I must use fixed resampling. But I can't resample the residuals
this way because I have only one residual for each level of the i.v.

Any advice?
--
|\  /| / MICHAEL KUBOVY (kubovy@virginia.edu)
| \/ |/		OFFICE: 804-982-4729; LAB: 982-4751; FAX: 982-4766
|    |\ 	   Department of Psychology, Gilmer Hall,
|    | \ 	   Univ. of Virginia, Charlottesville, VA 22903-2477
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Newsgroups: sci.math.stat
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!caen!uvaarpa!murdoch!usenet
From: mk9y@faraday.clas.Virginia.EDU (Michael  Kubovy)
Subject: Regression and bootstrap query
Message-ID: <1992Jul24.092353.3819@murdoch.acc.Virginia.EDU>
Sender: usenet@murdoch.acc.Virginia.EDU
Organization: University of Virginia
Date: Fri, 24 Jul 1992 09:23:53 GMT
Lines: 19