Which of the following is NOT an effective way to organize an informative speech?

The choice identified as not an effective way to organize an informative speech is repetitive. Organizing a speech effectively ensures that the audience can easily follow along and grasp the information being presented.

Chronological organization is useful for topics that follow a timeline, allowing the audience to see how events or processes unfold over time. Topical organization involves breaking down a subject into smaller sections or themes, which helps in emphasizing different aspects of a broad topic. Spatial organization arranges content based on physical layout or geographical locations, making it easier for the audience to visualize the information being discussed.

Repetitive organization, while it may reinforce certain points, does not establish a clear logical flow or structure for the speech. Rather than guiding the audience through the material, it tends to create confusion and can result in redundancy without adding educational value. Thus, it doesn't fulfill the primary objective of an informative speech, which is to present information clearly and effectively.