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Something I found interesting in “The Changing State of Recidivism” was the method of data collecting would suggest, at least to me, that there could be biases. The author states that “The federal Bureau of Justice Statistics collects data submitted voluntarily by state departments of corrections and parole”. This method of voluntary submissions of data could lead to biases because states that choose not to report their data could be doing so for some specific reason. As a result of voluntary submission, “only 23 states provided data for the entire 2005-15 time frame”. This shows the incompleteness of the data collected, as not even half of the states reported. All that being said, maybe the data from the states that didn’t report is consistent with the states that did. But, we don’t know because we don’t have that data, and therefore I find it safer to be skeptical and make no assumptions on the data than to make possibly false assumptions.