Logical Reasoning · Strengthen

PrepTest 129 · Section 2 · Question 5

Phase 1 (your first ~400 questions): read the guidance, then answer. No clock.

Step 1 · Pre-Question Guidance · read this first

Question type

Strengthen

The one idea it tests

Show that the recommended approach actually changes behavior the way the argument predicts.

The basic logic

The argument goes from 'people mainly choose based on one feature' to 'so pitching that feature will work better than pitching another.' The gap: does talking up that feature really move people? An answer showing that the pitch itself works, compared head to head, is the best booster.

Tiny words that decide it

“primarily”
“more success”
“rather than”

Playground logic

The librarian's patty: kids pick books mostly for excitement, not for how educational they are. Her top bun: so call science books exciting instead of educational. Secret sauce: describing a book as exciting actually gets kids to pick it up.

Step 2 · The kid story

The Library Pitch

Ms. Rivera noticed something about the class library. Kids grabbed books that looked thrilling. Almost nobody cared whether a book was 'good for you.' The science books sat on the shelf, lonely. "Hmm," she said. "If I tell kids the science books are educational, they yawn. Maybe I should tell them how exciting they are instead." Kevin raised his hand. "Is the volcano book exciting?" "There's a chapter where a whole island explodes." Kevin was already at the shelf. Priya, sipping her juice box, said, "That's one kid. To be sure the pitch works, you'd want to try it: tell one group 'exciting,' tell another 'educational,' and see who checks out more books." Lulu wrote down: Test the pitch.

Step 3 · Try the model question

Kids choose library books mainly because they seem exciting, and they rarely care whether a book is educational. So the librarian would get more kids to read science books by describing how exciting those books are rather than how educational they are.

Which one of these, if true, does the most to support the librarian's argument?

Step 4 · The courtroom tale

The Case of the Broccoli Billboard

The town council was sued over a billboard. Mr. Whitfield represented the farmers. "Your Honor, folks buy vegetables mostly for taste, not for vitamins. So my clients' new billboard says 'Crunchy and delicious!' instead of 'Full of vitamins!'" The other side scoffed. "Pure guesswork!" Mr. Whitfield held up a folder. "Exhibit C. At the market, half the shoppers saw a 'delicious' sign and half saw a 'vitamins' sign. The 'delicious' group bought more broccoli and came back for more." The judge nodded. "So the taste pitch does not just sound clever. It was tested against the other pitch, and it won." "Precisely, Your Honor. Crunchy and delicious."

Step 5 · Work the real question

Open PrepTest 129, Section 2, Question 5 in your official copy from LSAC (for example in LawHub) and read it there.

Your answer

How to apply it

Find the recommendation in the conclusion and the comparison it makes (one approach beats another). Ask what would prove the recommended approach truly works better. Look for a choice that directly tests or confirms that comparison, ideally showing people respond to the recommended pitch more than the alternative. Eliminate choices that merely restate the premise, help the other side, or shift to a different group.