Final answer:
John collects audience demographics to tailor his speech content to their attitudes, beliefs, and knowledge, ensuring he uses an appropriate level of detail and persuasive strategy.
Step-by-step explanation:
John is gathering audience demographic information for his speech primarily to predict audience reactions to the topic. This strategic approach is part of the speech preparation process, to ensure that the content is tailored to audience's attitudes, beliefs, cultures, and values. By understanding who the audience is and their relationship with the topic, John can adjust his script outline to include relevant examples, manage the depth of background information needed, and determine the best mode of persuasion. For instance, if the audience is unfamiliar with the topic, more background information is necessary. However, if the audience is opposed to the premise, John will need to focus on strong evidence and effective reasoning.
Moreover, by considering audience culture and expectations, John can decide on the level of detail, type of language, and reasoning strategies to be most effective in his speech. Completing an audience analysis, which includes assessing prior knowledge and cultural sensitivities, is vital in shaping the narrative and arguments of his speech.