High school students who feel that they are not succeeding in school often drop out before graduating and go to work.
Conclusion (this is evidence that)
The program to improve the morale of high school students has begun to take effect to reduce dropouts.
Evidence
High school students who feel they are not succeeding in school often drop out.
Last year, the city's high school dropout rate was significantly lower than the previous year's rate.
Evaluate
This argument falls into the Explain Curious Fact pattern because it identifies a change in situation (a Curious Fact) and provides a causal explanation.
Curious Fact: Why is the high school dropout rate is lower this year compared to last year?
Author's Explanation: The program to improve student morale has caused the reduction in dropout rates.
The argument assumes that the program is the main or only reason the dropout rate has decreased. To weaken this argument, we can look for alternative explanations for the reduced dropout rate, or we could challenge the plausibility that the morale program was indeed responsible for the change.
Goal
Let's find an answer that suggests an alternative reason for the reduced dropout rate, one that is unconnected to the morale improvement program.