Thank you both very much for your responses, Ann and Beth. It's reassuring. I think
the transition argument is a good one. "This is where we're going, but this is
where we've been and that approach will still be around for quite some time."
I too am the only statistics faculty (and in my first year, at that) and it feels like a
lot of pressure to make the "right" decision about course content, so it's
helpful to hear others' takes on issues.
Thanks again,
Megan
Megan J. Olson Hunt, PhD
Assistant Professor, Statistics
University of Wisconsin-Green Bay
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Contents of SBI digest..."
Today's Topics:
1. Explaining motivation for theory-based models (Olson Hunt, Megan)
2. Re: Explaining motivation for theory-based models (Ann Cannon)
3. Re: Explaining motivation for theory-based models (Beth Chance)
----------------------------------------------------------------------
Message: 1
Date: Fri, 2 Jan 2015 19:13:05 +0000
From: "Olson Hunt, Megan" <olsonhum(a)uwgb.edu>
To: "'sbi(a)causeweb.org'" <sbi(a)causeweb.org>
Subject: [SBI] Explaining motivation for theory-based models
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<8CBC5C8F1ACF1C4692AB0C048EA4F07724561D09(a)MAILBXB.uwgb.edu>
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I'm working on transitioning our undergrad introductory statistics course to one that
involves simulation-based ideas alongside parametric, theory-based models. At the risk of
sounding na?ve, I would like your opinion on the following: With the advent of computers
that make simulation-based p-value calculations fast and easy, and for those of you that
teach this idea in parallel with theory-based p-values, how do you explain the motivation
for even using theory-based p-values to your students?
In other words, parametric models require assumptions that may not be met. If we can use
simulation to obtain a reliable p-value without worrying about these assumptions, then why
bother with a t-test (e.g.) for a p-value at all? It seems like a historical argument
("It's been done and probably will continue to be done for quite some time")
is one, but... I'm left feeling like I have to tell my students to conduct these
theory-based tests "just because."
Thanks for your thoughts.
Megan