Monday, January 02, 2006
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, type
. 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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