Major changes coming to 2016 SAT test: Here's what, how and why

CNN - The SAT will undergo sweeping changes on what's tested, how it's scored and how students can prepare. One change is that some questions will require students to cite evidence for their answers; additionally, the math section will no longer allow calculators to be used on every portion. The redesigned test will take about three hours, with 50 additional minutes for the essay; it will be administered by print and computer, while the current test is available on paper only.