Final answer:
Education and income are the primary factors that predict college attendance in the United States.
Step-by-step explanation:
The single factor that best predicts who will attend college in the United States is education. Educational expectations can vary based on factors such as culture and socioeconomic status. However, studies have consistently shown that individuals with higher levels of education are more likely to attend college. For example, among those who have completed college, the voter turnout rate is higher compared to those without a college degree.
Another important factor that predicts college attendance is income. Citizens with higher incomes are more likely to pursue higher education. When high income and college education are combined, the resulting high socioeconomic status strongly predicts the likelihood of college attendance.
Overall, while there are multiple factors that can influence college attendance, education and income are two of the most prominent predictors in the United States.