BoardQBank LSAT · Structured reasoning and reading preparation
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Practice Module 02

Strengthen and Weaken

Evaluate how new information changes the support for a conclusion, especially in causal, predictive and comparative arguments.

Strengthen

Support the missing link

Confirm an assumption, eliminate an alternative or add evidence in the conclusion’s direction.

Weaken

Attack the missing link

Introduce an alternative, expose a mismatch or show that the evidence is unreliable.

Control

Measure the effect

Focus on whether the choice changes the argument rather than whether it discusses the topic.

What to master

  • Causal claims and alternative explanations.
  • Survey and sample arguments.
  • Plans and proposed solutions.
  • Analogy and comparison arguments.
  • Evidence that is relevant but directionally neutral.

BoardQBank strategy

1

Identify the conclusion and assumption before reading choices.

2

Use a cause-and-effect checklist for causal arguments.

3

Ask whether each choice makes the conclusion more or less likely.

4

Reject choices that affect a side issue but leave the reasoning gap unchanged.

Practice focus

  • Standard strengthen questions.
  • Standard weaken questions.
  • EXCEPT questions with four choices having the requested effect.
  • High-difficulty questions with subtle relevance traps.

Continue your LSAT preparation

Move from concept review to targeted drills, timed sets and cumulative practice.

Next: Inference and Must-Be-True