This study examined the validity of the SAT for predicting performance in first-year English and mathematics courses. Results reveal a significant positive relationship between SAT scores and course grades, with slightly higher correlations for mathematics courses compared to English courses. Correlations were estimated by student characteristics (gender, ethnicity, and best language), institutional characteristics (size, selectivity, and control, i.e., private or public), and course content (e.g., calculus, algebra). The findings suggest that performance on the SAT is predictive of performance in specific college courses. Furthermore, stronger relationships were found between test scores and grades when the content of the two were aligned (such as the SAT mathematics section and mathematics course grades, or the SAT writing section and English course grades). Supplemental tables are appended.