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st: Update to -rrlogit- on SSC
Thanks to Kit Baum, an update to the -rrlogit- package is
available from the SSC archive. To install the update,
. ssc install rrlogit, replace
-rrlogit- fits logistic regression for randomized response data.
o Individually varying probabilities of unconditional answers
can now be taken into account.
o I accidentally omitted a constant term in the log likelihood
function. This had no implications for the estimated
coefficients, but the reported log likelihood values were
wrong. This is fixed.
o The baseline (constant only) model was estimated incorrectly.
Thus, a wrong value for the overall Chi2-Test was reported.
This is fixed.
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