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When I was doing my Ph.D., my "Correlation and Regression" instructor had a section of the class called "Step-Wise Regression:  Tool of the Devil."  

As you can guess, he wasn't big on it.  :-)

-M


-----Original Message-----
From: Team-Based Learning [mailto:[log in to unmask]] On Behalf Of James Sibley
Sent: Wednesday, June 23, 2010 9:21 AM
To: [log in to unmask]
Subject: Re: Statistics or Quantitative Course

How about an activity where you use step-wise regression to create both
positive and negative correlations from same data set

Give data set to students with the "helpful" correlation plot to inform
solving some problem

They argue back and forth and realize eventually that you think the
correlation is opposite....make them actually go back to the data


jim


On 10-06-23 6:43 AM, "Ronald Giachetti" <[log in to unmask]> wrote:

> Hi All,
> 
> In the fall semester I'll be teaching a course titled, "evaluation of
> engineering data" that involves probability and statistics.  I want to try TBL
> for this course, and I'm trying to think of good team assignments for in the
> classroom.  The problem I find is that the course material is usually
> presented as black & white -- in other words, for a problem there is only one
> correct answer.  In all the courses that I've seen that use TBL, the team
> assignments are such that there are multiple good answers and arriving at an
> answer requires a team to discuss and negotiate the strengths/weaknesses of
> different answers.
> 
> I've developed classroom exercises to demonstrate ideas.  For example, for
> confidence intervals I have a bag full of numbers from a distribution.  I have
> each team pull a sample of numbers and construct a confidence interval.  Each
> team then draws their confidence interval on the board.  I then draw the
> actual population mean and show them that even though all their confidence
> intervals are different, they all contain the mean.
> 
> While I think the above exercise is better than straight lecturing, it doesn't
> capture the team-based learning that I've seen in other classes.  So, if
> anybody has any experience in quantitative courses or can direct me to
> literature on the area, I'll be interested in how they construct team
> exercises.
> 
> Thanks.
> 
> Ron.
> 
> 
> 
> 
> Ronald Giachetti
> Associate Professor
> Department of Industrial & Systems Engineering
> Florida International University
> http://web.eng.fiu.edu/ronald/
> [log in to unmask]
> 305-348-2980