Complete the sentence to define incrementality testing.
Incrementality testing measures the [1] effect of a marketing campaign.Incrementality testing measures the causal effect of a marketing campaign, meaning it shows what impact the campaign had beyond what would have happened anyway.
Complete the sentence to explain the control group role in incrementality testing.
The control group is used to [1] what would have happened without the campaign.The control group helps to estimate the baseline behavior, showing what would have happened without the campaign.
Fix the error in the statement about incrementality testing.
Incrementality testing compares the [1] group to the test group to find the campaign's impact.
The correct comparison is between the control group (no campaign) and the test group (campaign exposed) to measure impact.
Fill both blanks to complete the formula for incrementality lift.
Incrementality lift = ([1] - [2]) / [2]
The formula calculates lift by subtracting control group conversions from test group conversions, then dividing by control group conversions.
Fill all three blanks to complete the description of a key step in incrementality testing.
To ensure valid results, [1] must be randomly assigned to [2] and [3] groups.
Participants must be randomly assigned to control and test groups to avoid bias and ensure valid incrementality results.