How removing third-party quotes affects donor conversion
Experiment ID: #3397
CaringBridge
Experiment Summary
Timeframe: 02/28/2016 - 03/10/2016
CaringBridge had featured quotes from a family who used the site on their donation pages for a monthlong campaign. After the campaign was over, the quotes stayed on the donation pages.
However, previous testing had shown that since CaringBridge is a very personal experience, and response often decreased when a third-party family (that was unfamiliar to the user) was introduced.
We developed a treatment page that removed the third-party quote and ran an A/B split test to determine a winner.
Research Question
Does third-party credibility decrease conversion when the primary value proposition is a personal experience?
Design
C: Page with third-party quote
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Results
| Treatment Name | Conv. Rate | Relative Difference | Confidence | |
|---|---|---|---|---|
| C: | Page with third-party quote | 3.5% | ||
| T1: | Treatment with no quote | 6.8% | 94.3% | 98.6% |
This experiment has a required sample size of 350 in order to be valid. Since the experiment had a total sample size of 1,066, and the level of confidence is above 95% the experiment results are valid.
Flux Metrics Affected
The Flux Metrics analyze the three primary metrics that affect revenue (traffic, conversion rate, and average gift). This experiment produced the following results:
0% increase in traffic
× 94.3% increase in conversion rate
× 0% increase in average gift
Key Learnings
This is a powerful test that has implications for future appeals and fundraising campaigns. While the power of story can be a compelling addition to a fundraising ask, it might get in the way for a site like CaringBridge that serves as the conduit for person-to-person interactions.