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st: cross validation and student version of STATA "Sophie Barthel"
In some contexts, cross-validation means to develop a predictive model
in one "training" data set and use it in an independent data set to
'validate' the predictive ability of the model. This reminds me of the
split-half coefficient or cronbach's alpha.
I have been asked by a friend to do a bootstrap analysis in STATA for
confidence intervals (which i do know how to do). However, he is also
asking for a cross validation, and to be honest I am a bit stuck as to
what exactly he means by this.
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