What effect can debates have on undecided voters?

Debates can significantly influence the perceptions of undecided voters regarding candidates and their stances on various issues. During a debate, candidates present their policies, answer questions, and engage with one another, which allows undecided voters to evaluate their performance in real-time. This process can lead to changes in how candidates are viewed, making them appear more favorable to some while causing others to view them unfavorably. The dynamic and often confrontational nature of debates provides a platform for candidates to differentiate themselves and connect with voters, potentially swaying opinions and making a lasting impact on undecided voters' choices.

Other options do not capture the primary influence that debates have. For instance, while debates may be seen as a formal part of the electoral process, they carry weight in shaping voter opinions, which counters the idea of being merely a formality. Additionally, debates do not solely serve to provide biographical information about candidates; rather, they focus on political issues and direct comparisons that can affect voter sentiment. Lastly, rather than discouraging participation, debates can actually stimulate interest and engagement among voters, particularly those who are undecided.