Which of the following guidelines would not be helpful when evaluating a speech?

Did the speaker pick the topic, or was the topic assigned?

Did the speaker use verbal strategies, nonverbal strategies, and rhetorical language to reinforce the information?

Did the speaker support each main idea with appropriate details?

Did the speaker introduce the topic clearly?

All of the listed guidelines would be helpful when evaluating a speech.

The guideline that would not be helpful when evaluating a speech is "Did the speaker pick the topic, or was the topic assigned?" This guideline is not directly related to the quality of the speech itself or the speaker's ability to deliver the information effectively.

To determine which of the following guidelines would not be helpful when evaluating a speech, let's examine each guideline individually:

1. "Did the speaker pick the topic, or was the topic assigned?" - This guideline is helpful in evaluating a speech because it allows you to determine if the speaker had personal interest or knowledge in the topic, which can influence the overall quality and delivery of the speech.

2. "Did the speaker use verbal strategies, nonverbal strategies, and rhetorical language to reinforce the information?" - This guideline is also helpful because it assesses the effectiveness of the speaker's communication techniques, such as their use of tone, gestures, and persuasive language to enhance the delivery and impact of the speech.

3. "Did the speaker support each main idea with appropriate details?" - This guideline is crucial in evaluating a speech as it assesses the speaker's ability to provide evidence and examples to back up their main points, ensuring the speech is well-researched and persuasive.

4. "Did the speaker introduce the topic clearly?" - This guideline is also useful in evaluating a speech as a clear introduction helps set the tone, context, and expectations for the audience, allowing them to engage with the content more effectively.

Considering the above analysis, it can be concluded that all the guidelines mentioned are helpful in evaluating a speech. Therefore, none of them would be considered unhelpful or irrelevant when assessing the quality of a speech.