According to Washington Post and Slate, both being rather progressive, SAT prep might improve scores 10-20 points on average, with greater effect on the math section. There is a paper on the ACT website suggesting 30-60 points.
Downward adjustments for high performing demographics can be double that.
A cup of coffee would probably see similar or better improvements than test prep.
According to Washington Post and Slate, both being rather progressive, SAT prep might improve scores 10-20 points on average, with greater effect on the math section. There is a paper on the ACT website suggesting 30-60 points.
Downward adjustments for high performing demographics can be double that.
A cup of coffee would probably see similar or better improvements than test prep.
https://www.washingtonpost.com/news/answer-sheet/wp/2017/05/...
https://slate.com/technology/2019/04/sat-prep-courses-do-the...
https://www.act.org/content/dam/act/unsecured/documents/R171...