LR Deep Dive: Weaken, Strengthen, and Assumption Questions

Weaken questions are among the most common on the LSAT and account for roughly 10-12% of all LR questions. The key insight is that you are not making the conclusion false — you are making the argument less reliable by attacking its assumption. First, identify the argument's conclusion and the gap between its premises and conclusion. Then identify the hidden assumption that bridges that gap. A correct Weaken answer introduces information that makes the assumption less credible or provides an alternative explanation. Common weakener types include: an alternative cause for the observed effect (causal arguments), a disconfirming data point (statistical arguments), or a relevant difference between the analogy cases (analogy arguments).