Effectiveness refers to how successful or impactful something is in achieving its intended purpose. In the context of evaluating a writer's appeal, effectiveness refers to how well the writer's persuasive techniques and arguments are able to sway or convince their audience.
Rhetorical devices are specific techniques used by writers to enhance the effectiveness of their appeals, such as metaphors, similes, and rhetorical questions.
Audience Analysis: Audience analysis involves considering the characteristics and preferences of the target audience in order to tailor an appeal that will be most effective for them.