On May 16, 2019, we completed a thorough study on the effectiveness of our program. The results are THRILLING!
The following criteria were used to select a sample of 224 students for Foley Prep's SAT® study.
The increase in score due to Foley Prep's program was calculated by taking the difference between the lowest score and highest score received on a practice test at Foley Prep. Official College Board released tests were administered under officially-timed conditions at a Foley Prep hub. This method results in a lower number than if we were to start with a student's PSAT as a baseline … we believe it is more fair to compare a student's performance on an SAT® taken later than the PSAT, which is generally lower.
The resulting sample size of 224 qualifying students had an average score increase of 149.9 points (standard deviation 69.8 within a possible SAT® score range of 400-1600). A 1-sample confidence interval was constructed using a 5% significance level (95% confidence). The confidence interval bounds were 140.7 to 159.1 (149.9 ± 9.2).