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st: Fuzzy set QCA output interpretation


From   Brooking Gatewood <bgatewoo@exchange.uci.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: Fuzzy set QCA output interpretation
Date   Tue, 8 Jun 2010 09:45:30 -0700

We¹ve got 38 cases and are using fuzzy set QCA for analysis
And are wondering why we get only 7-11 cases (depending on the number of
variables we include in our causal recipe) with the "tab
bestfit" command. According to Longest and Vaisey, Stata Journal 2009, the
only reason this should happen is missing data or cases scoring .5 on all
individual predictor sets, and, accounting for these cases, we should get
22.  Why aren¹t we getting more cases in our best fit, and how should this
be interpreted?? 
Thanks.

[basic code we used:
fuzzy A C Y D T L,sett(yvv yvn) sigonly greater(col1) common
reduce
tab bestfit]




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