Hi Tom, Thanks so much for your reply! That's what I had figured it was doing (somehow imputing differently depending on the order of observations), but it is helpful to know that that is what others think is going on. Indeed, that seems non-consequential in the long term in terms of one set of imputed values being somehow more or less valid than the other for future analyses. In support of that, Ms and SDs of scores among imputed participants only are very close (within .01 of each other), even though scores aren't necessarily comparable for any one participant. Thank you, again, for your help!
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