Final answer:
Educational level is the single most important factor in predicting voter turnout in recent elections, with those holding a college degree participating at substantially higher rates.
Step-by-step explanation:
The single most important factor in predicting whether an individual will vote in recent elections is educational level. Research has consistently shown that individuals with higher levels of education, particularly those who have completed college, are much more likely to vote. For example, the 2020 voter turnout rate was approximately 80% for eligible voters with a college degree compared to about 60% for those without one.
Additionally, income also plays a strong role, with citizens earning $150,000 or more annually being significantly more likely to vote, with over 80% turnout, while only 55% of those earning $25,000 a year vote. Nevertheless, when considering the powerful effect of education and other factors like income, it's the level of education that stands out as the top predictor of voter participation.