Grow Progress uses Randomized Controlled Trials, the same gold-standard methodology as clinical drug trials, to measure what actually persuades people. Here's exactly how it works.
A poll tells you 58% of voters support a policy, but it can't tell you which message drove them there, or whether a different message would have moved them more. That's the difference between correlation and causation. Traditional research describes what people already believe. It can't isolate what shifted those beliefs, because nothing was ever randomly assigned.
This is the same design used in clinical drug trials. It's the gold standard for proving causation in medicine, and it's the gold standard for proving causation in persuasion. When a treatment group moves 9 points more than a control group, you know the message did that, not ambient news, not the question order, not demographic drift.
Five steps. Twenty-four hours. Results you can act on.
Define a success question, your messages (test a single message or compare several head-to-head), target audience, and required sample size. Grow Progress strategists work with you to frame the study so results are clean and actionable, not just statistically valid but practically useful.
GP builds a structured survey with screener questions to qualify respondents, randomized message exposure across treatment and control conditions, pre/post attitude measures calibrated to your success question, and a full demographic battery.
The survey fields to a targeted sample matched to your audience, sourced through trusted, vetted third-party providers. Typical studies run 1,000–2,000 respondents. Rigorous quality controls remove speeders, straight-liners, and inattentive respondents before analysis begins.
Statistical analysis isolates lift: treatment group minus control group. Every study breaks results out by subgroup, party, gender, age, geography, education, and more, so you know not just what worked overall, but which audiences it moved, and which it didn't.
You receive a clear results report, not a raw data dump. Lift scores, confidence intervals, subgroup breakdowns, and a written strategist recommendation explaining what the findings mean and how to act on them. Results are typically back within 24 hours of fielding.
The Grow Progress platform isn't a single tool, it's a connected intelligence cycle. Each product feeds the next, so your audience insight shapes your messages, your message tests validate what works, and your tracking catches when conditions shift.
Map who your audience is, what they believe, and what frames resonate, before you ever test a message.
Audience Understanding →Run Randomized Controlled Trials on your messages. Know exactly which frame moves people, and by how much.
Rapid Message Testing →Search 500+ studies to find what has worked for similar audiences and issues, so you're not starting from zero.
Persuasion Library →Monitor how your audience's views evolve over time, and re-enter the cycle the moment conditions change.
Pulse Surveys →Results that are causal, not correlational. Unlike traditional surveys or A/B tests that measure preference, Grow Progress's RCT methodology produces evidence that your message caused a shift in support, the kind of result you can defend in front of a board, a funder, or a campaign manager under pressure.
Unlike A/B testing on live campaigns or focus groups with self-selected participants, RCTs give you causal proof of what moved the needle. Because respondents are randomly assigned, the difference between groups can only be the message, not the news cycle, question order, or who happened to land in each group. You don't just know that a message performed, you know it caused the result.
Traditional research takes weeks and costs $50–100k per study. Grow Progress takes 24 hours at a fraction of the price. That's the difference between data you can act on today and data that arrives after the decision has already been made.
Every study breaks out results by key demographics, party, gender, age, geography, education, and more. You know not just what works overall, but who it works on. The message that moves suburban women may do nothing for rural independents.
Talk to our team. We'll walk you through a real study example and show exactly how an RCT would answer your most pressing message question.