This is a nice summary of the advantages and disadvantages of various methods for handling missing values.

Pigott TD. A Review of Methods for Missing Data. Educational Research and Evaluation. 2001;7(4):353-383. doi:10.1076/edre.7.4.353.8937. Available at<U+00A0> http://www.stat.uchicago.edu/~eichler/stat24600/Admin/MissingDataReview.pdf

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This Recommendation was added to the website on 2014-05-06 and was last modified on 2020-02-29. You can find similar pages at Missing data.

An earlier version of this page appears here.