Fig. 2: Alluvial diagram visualizing change of winner evaluation from pre- to post-survey question. | Humanities and Social Sciences Communications

Fig. 2: Alluvial diagram visualizing change of winner evaluation from pre- to post-survey question.

From: How to convince in a televised debate: the application of machine learning to analyze why viewers changed their winner perception during the 2021 German chancellor discussion

Fig. 2: Alluvial diagram visualizing change of winner evaluation from pre- to post-survey question.

The diagram shows the change of winner expectation to winner post evaluation induced by the debate performance. Annalena Baerbock and Armin Laschet convinced more viewers during the debate and increased their proportional share. Olaf Scholz lost favor with viewers during the debate. The share of viewers expecting a “draw” also declined significantly. Most viewers reported in the post-evaluation a clear winner based on debate perception.

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