Prior.Runprior.run·
Engagement Rate Variant TestExperiment 140
BWe prefer Creative B·
Engagement Rate Variant TestExperiment 140
v1 · Apr 28, 2026 · 3:51 AMOptimizing for: Engagement rate
Decision Memo

We prefer Creative B for stronger emotional pull and social proof integration

Broad consumer audience — mix of tech-savvy and casual users, mobile and desktop

Audience: General Consumer

Hypothesis: Tell me which creative will perform the best with my customers?

Confidence

ModerateAudience preference is clear but compliance risks on the winner introduce real pre-launch uncertainty

Readiness

Almost readyResolve the FTC disclosure flag and review attribution before activating spend

The bottom line

Trust and credibility reactions (20% of viewers) also favored Creative B's review overlay.

66sto decisionvs.4–6 weeks to reach stat sig
1,800+synthetic users tested
Creatives compared
4:5 in-feed · native Meta crop
yourbrand
Sponsored · ⓘ
···
Creative A
💬🔖
yourbrand Shop Now
ACreative A
Recommended
yourbrand
Sponsored · ⓘ
···
Creative B
💬🔖
yourbrand Shop Now
BCreative B
What our users said
Saw Creative BVisual & emotional appeal converted 34% of engaged users.

That yellow chair pops. The room feels warm, lived-in, real — not sterile. Mary's review feels genuine, and the styling makes me want to see more.

Saw Creative BAuthentic repetition detail ('bought three') signaled real-world validation.

Mary bought three. That detail — the repetition, the 'we love them' — feels genuine. The styling's warm, the review's honest. I'd tap to see if it fits my space.

Runner-up wins and misses

Why Creative A lost, and what’s worth keeping.

How to improve

For your team — what to fix, what to keep, and what to verify.

Deeper analysis

For your VP, stakeholders, or anyone who wants the full picture.

Did this memo help you make a decision?

Generated by Prior.Run — Know before you build.