Looks like a somewhat incomplete analysis, it needs FUTURE and PAST data! (tamino.wordpress.com)
In Joaquin Sapien's thorough (and thoroughly disturbing) article, For New York Families in Custody Fights, a «Black Hole» of Oversight, he reports on the story of a mother separated from her son as a result of an error - filled and incomplete analysis made by a court - appointed forensic psychologist. (newyorkdivorcelawyerblog.com)
Sadly, they did not correct their error as they chose to focus on a lopsided and incomplete analysis of the fees found in a narrow and select study of mutual fund IRAs. (insurancenewsnet.com)