Final answer:
The idea that combining SAT scores with GPA decreases college performance predictions is false. Both GPA and SAT scores are commonly used together to provide a comprehensive assessment of a student's potential. Colleges are increasingly considering a holistic approach in admissions beyond just SAT scores and GPA.
Step-by-step explanation:
The statement that predictions of college performance decrease when combining SAT scores with GPA, compared to using SAT scores alone, is generally considered false. Research indicates that both high school GPA and SAT scores provide useful information about a student's potential for success in college. For instance, a widely accepted practice in college admissions is to observe correlations between current students' college GPA and their standardized test scores, like the SAT or ACT, to help predict the success of new applicants.
Moreover, an equation presented for illustrative purposes suggests that GPA depends on three factors: the combined SAT score, class attendance, and study time, with study time having a larger impact. In this model, increasing study time and class attendance are actionable ways to potentially raise one's GPA. This reflects a broader consensus that multiple factors should be considered when predicting academic success, meaning that using both SAT scores and GPA together can provide a more comprehensive assessment than either metric alone.
However, it’s important to acknowledge that institutions are increasingly looking at a broad range of factors beyond SAT scores and GPA due to concerns about equity and the predictive validity of standardized tests. Even as many colleges continue to use these metrics, there is a growing trend towards a more holistic approach in admissions processes.