What conflict strategy does Ms. Norbury use? Is the strategy effective in this situation? Discuss how well this strategy would (or wouldn't) work in other conflict situations

Ms. Norbury lectures the assembly of junior girls about the ramifications of their behavior.... the hurtful way in which they call each other "sluts and whores." In the gymnasium, she asks the girls to close their eyes and raise their hands if they have ever talked about someone behind their back, or been talked about. Most of the girls raise their hands for both questions, and she challenges them to confront one another face to face about their actions.

As a result, Ms. Norbury then oversees multiple interactions, while Regina complains that some of them don't belong there because they are only "victims." Ms. Norbury then asks everyone who has ever felt "personally victimized" by Regina George to raise their hand, and almost everyone does, including many of the teachers and Mr. Duvall.

Ms. Norbury then proceeds with the intervention and asks Cady if she has anything that she wants to apologize for, but Cady refuses to own up to any of her actions. Ms. Norbury tells Cady she's disappointed in her, and beseeches that the girls stop calling each other "sluts" and "whores." She asks the girls to write out apologies, recite them to the group, and perform trust falls, which goes well for a time.

The last part of your question calls for your opinion.