"Since implementing the new teaching method, test scores dropped. The new method must be ineffective." Which most strengthens this conclusion?

Question

BrainForge Quiz · Accepted Answer

B) Multiple schools that adopted the method all saw score drops, while schools using traditional methods did not. Replication across multiple schools with a control group (traditional method schools) strengthens the causal claim about the method being ineffective.

"Since implementing the new teaching method, test scores dropped. The new method must be ineffective." Which most strengthens this conclusion?

✓ Correct Answer: Option B

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