However, a detailed study in 2018 reported by Brian T. Fitzpatrick, a law professor at Vanderbilt University, looked at how often a federal circuit court was reversed for every thousand cases it terminated on the merits between 1994 and 2015. The study found that the Ninth Circuit's decisions were reversed at a rate of 2.50 cases per thousand, which was by far the highest rate in the country, with the Sixth Circuit second as 1.73 cases per thousand. Fitzgerald also noted that the 9th Circuit was unanimously reversed more than three times as often as the least reversed circuits and over 20% more often than the next closest circuit.