How clarity of the opt-in language impact conversion Experiment ID: #8935
Alliance Defending Freedom
Alliance Defending Freedom is an alliance-building legal organization that advocates for the right of people to freely live out their faith.
Timeframe: 4/3/2018 - 4/30/2018
For Alliance Defending Freedom, their new email acquisition forms contained default opt-in language below the Submit button that was set but their email marketing system. After reviewing the language, we realized that it may be a bit ambiguous which could cause some mental friction for subscribers. We decided to test new opt-in language that would additional clarity on the type of communications they would be receiving.
Will additional clarity around the type of communications new subscribers will receiving increase email conversion rate?
|Treatment Name||Conv. Rate||Relative Difference||Confidence|
|C:||By submitting this form...||1.6%|
|T1:||When you sign your name...||1.8%||13.1%||96.3%|
This experiment has a required sample size of 30,142 in order to be valid. Since the experiment had a total sample size of 68,321, 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
× 13.1% increase in conversion rate
× 0% increase in average gift
We found that by clarifying the type of communications they would be receiving, we were able to increase email acquisition by 13.1%. By leaving the opt-in language generic, we were allowing prospective subscribers the option of “unsupervised thinking.” Every step of the conversion funnel needs to increase the value and clarity of the offer to increase the chances for conversion.