What casts doubt on PPC A/B tests? By vmartinez What casts doubt on PPC A/B tests? The max CPC you set Too many testing variables at once Device bid modifiers Related content Related questions:A best practice for getting fair and unbiased…Fill in the blank: When performing email A/B tests, _______.Scenario: You’re discussing platform goals with your…Fill in the blank: A tool that tests if your…