What other states are doing to meet ESSA testing mandates. Why is Georgia Different?

In a recent op ed on the AJC Get Schooled blog, the author discussed the session times as being inappropriate for elementary and middle school age students.  CLICK HERE to read it.

In that article, there is a table (Download PDF) that discusses what other states are doing to meet ESSA mandates.  Additionally, there is a table that compares the 2017 Milestone testing session time for elementary and middle school children to college admission test requirements (Download PDF).

Our question is why are the Georgia Milestones testing session times longer than those in most other states?  Also, why are they longer than most college admission tests?

GA Milestone Testing Session Times Compared to Those In Other States that Meet ESSA Standards

GA Milestone Testing Session Times Compared to Those In Other States that Meet ESSA Standards