Day 33 of 168 · Week 6
Day 33 / 168 Week 6 of 28 Phase 2: Logical Reasoning Deep Dive

Strengthen I: Closing the Gap From the Other Side

🕑 ~75 min · Archetype A — LR Deep Dive

Strengthen I: Closing the Gap From the Other Side

Necessary and Sufficient Assumption both ask for claims the argument logically requires. Strengthen relaxes the standard: the correct answer just needs to make the argument more convincing, not prove or complete it.

1. The "Would Help" Standard

A Strengthen answer doesn't need to guarantee the conclusion — it needs to increase the likelihood that the conclusion is true, given the premises. This is a fundamentally lower bar than Sufficient Assumption's "guarantees."

2. Attacking the Gap From the Support Side

The same gap-finding skill from Day 14 applies, but instead of asking "what's missing," ask "what evidence, if added, would make this gap less concerning."

3. Strengthen a Causal Argument

Using Day 9's five supports: rule out an alternate cause, rule out reversed causation, or show a controlled comparison.

Practice items on this page are curriculum-authored in LSAT style; they are not official LSAC questions. Real drilling happens on LawHub — see the assignment below.

Q1. Argument: "The new onboarding program was introduced in March, and employee retention rose in the following quarter. So the program improved retention." Which most strengthens this?

A. Retention also rose the previous year, before the program existed
B. No other major workplace changes occurred between March and the following quarter
C. The program was expensive to develop
D. Some employees disliked the program
Correct answer: B. Ruling out other explanations for the retention increase strengthens the causal claim by eliminating a likely alternate cause.

LawHub drill-tier LR section, untimed. Scan for Strengthen stems only.

An RC maintenance day tomorrow (Inference), then Strengthen II: causal plans and the Strengthen-EXCEPT variant.