1. Buckley C.(2020). SAT drops plans for home exam amid internet access concerns.AP Wire Service. Retrieved from:https://gazette.com/ap/national/sat-drops-plans-for-home-exam-amid-internet-access-concerns/article_dc9f15e2-c383-52c1-af67-e5f1b737ddff.html
2. Impact of Technology, Digital Devices, and Test Timing on Score Comparability
3. Chin M.(2020). Exam anxiety: How remote test‐proctoring is creeping students out.The Verge. Retrieved from:https://www.theverge.com/2020/4/29/21232777/examity-remote-test-proctoring-online-class-education
4. College Board(2019).Annual AP program participation 1956–2019. Retrieved from:https://secure-media.collegeboard.org/digitalServices/pdf/research/2019/2019-Annual-Participation.pdf