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Statistical difference in median ages
https://userforum.dhsprogram.com/index.phpindex.php?t=rview&goto=13780&th=6657#msg_13780
A more complicated question: is there a way to test for a statistical difference in SMAM (Singulate mean age at marriage)?
Thanks!
Kristin]]>kbietsch2017-12-21T21:36:34-00:00Re: Statistical difference in median ages
https://userforum.dhsprogram.com/index.phpindex.php?t=rview&goto=13781&th=6657#msg_13781
How about a quantile regression at the median, including both age-at-first-marraige AND an interaction of age-at-first-marriage with "second survey round"? Then the coefficient on the interaction gives you the difference between the two rounds and you can do a simple T-test (if the interaction coefficient is statistically significant, that's a test of the difference).
Another option would be a "seemingly unrelated regressions" version for quantiles... but looking online I'm not sure anyone has done that (or at least I don't see a Stata package for it). I'd say the interaction method above would be good - you could compare means using Seemingly Unrelated Regression (sureg/suest in Stata) by doing two separate regressions and testing the coefficients after...but it sounds like you want the median.]]>Reduced-For(u)m2017-12-21T21:53:42-00:00