Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: discrete dep var in OLS and implications for goodness-of-fit


From   Lloyd Dumont <lloyddumont@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: discrete dep var in OLS and implications for goodness-of-fit
Date   Sun, 21 Oct 2007 14:51:19 -0700 (PDT)

Hello.  I am running an OLS model on a discrete
dependent variable that takes on whole number values
between 0 and 5, inclusive.  It is actually an ordered
categorical, so an ordered logit would be more
approrpriate than OLS.  But, OLS coefficients are
easier to explain.  So, I figured I would make sure
the results are qualitatively identical, and then
present and interpret the OLS estimates.

Questions:
- The R2 is not very high.  I think it is biased
downward by the fact that the dep var is not really
continuous.  Is this true, and is there a good
reference I can look at to understand this?

-Are their any other big pitfalls to my decision to
run OLS on a variable that wasn't really made for OLS?


I appreciate your help.  Thank you.  Lloyd

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index