Use two-sided messages with a sophisticated audience
Acknowledge the strongest objection, then refute it — this is more persuasive than ignoring it.
Key takeaways
- What it is: Acknowledge the strongest objection, then refute it — this is more persuasive than ignoring it.
- Why it works: A one-sided message leaves the audience’s existing counter-arguments active, because the speaker seems unaware of or afraid to address them. A two-sided refutational message signals intellectual honesty, reduces perceived bias, and neutralises the counter-argument before the audience can use it. Under high elaboration, this effect is especially pronounced because the audience will think of the objection anyway.
- Evidence: Backed by observational / correlational evidence.
- Avoid: Conceding the objection without refuting it, which validates the concern and weakens the overall case rather than strengthening it.
Why it works
A one-sided message leaves the audience’s existing counter-arguments active, because the speaker seems unaware of or afraid to address them. A two-sided refutational message signals intellectual honesty, reduces perceived bias, and neutralises the counter-argument before the audience can use it. Under high elaboration, this effect is especially pronounced because the audience will think of the objection anyway.
How to do it
- 1Identify the single strongest objection to your position before speaking.
- 2Name it explicitly: "The main argument against this is X."
- 3Refute it specifically with evidence or logic — not dismissal.
- 4Return to your core argument, which now stands with the obvious objection already addressed.
What the evidence says
ObservationalResearch on one-sided vs. two-sided messages finds that two-sided refutational messages are more persuasive than one-sided messages with audiences who are educated, forewarned, or initially sceptical — the conditions where elaboration is high.
Honest caveat: Two-sided non-refutational messages (raising the objection without addressing it) can backfire — the refutation is essential.
- — Allen (1991), meta-analysis of two-sided messages, Western Journal of Speech Communication
Common mistake
Conceding the objection without refuting it, which validates the concern and weakens the overall case rather than strengthening it.
IX Coach helps you rehearse two-sided delivery by surfacing the strongest likely objection and checking that your refutation is specific enough to neutralise it.
Practice this with IX Coach →