How would you test swapping two CTA buttons?
Problem Description
You are a Data Scientist working on the Airwallex marketing/product landing page. This page features two primary Call-to-Action (CTA) buttons: "See a demo" and "Get started".
A proposal has been made to swap the positions of these two CTA buttons. This means their relative order or styling (e.g., left/right, primary/secondary visual hierarchy) would change, but the buttons themselves remain the same.
Task Requirements
- Hypothesize Business Impact: Propose 2-3 plausible user or business problems that this positional swap might be attempting to solve.
- Experiment Design: Design a comprehensive experiment or evaluation plan to determine whether this change should be implemented. Your design must include:
- The primary success metric, along with a clear justification for its selection.
- Secondary/diagnostic metrics to track, explaining how they would help understand tradeoffs across the user funnel.
- Crucial guardrail metrics, particularly considering the context of a fintech onboarding flow.
- Identify Pitfalls and Biases: Discuss key pitfalls and biases that could affect the experiment's validity or interpretation. Examples include novelty effects, potential cannibalization between the CTAs, and heterogeneous effects across different user segments.
Assumptions
- You have the capability to run an A/B test on page traffic.
- You must define the unit of randomization for your experiment.
- You must outline the analysis approach.
AI interview prep
Core dilemma
Balancing statistical rigor and validity (e.g., power, significance, bias mitigation) with business urgency and risk management, especially in a high-stakes fintech environment where user trust, conversion quality, and regulatory compliance are paramount.
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Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
How would you test swapping two CTA buttons?
Problem Description
You are a Data Scientist working on the Airwallex marketing/product landing page. This page features two primary Call-to-Action (CTA) buttons: "See a demo" and "Get started".
A proposal has been made to swap the positions of these two CTA buttons. This means their relative order or styling (e.g., left/right, primary/secondary visual hierarchy) would change, but the buttons themselves remain the same.
Task Requirements
- Hypothesize Business Impact: Propose 2-3 plausible user or business problems that this positional swap might be attempting to solve.
- Experiment Design: Design a comprehensive experiment or evaluation plan to determine whether this change should be implemented. Your design must include:
- The primary success metric, along with a clear justification for its selection.
- Secondary/diagnostic metrics to track, explaining how they would help understand tradeoffs across the user funnel.
- Crucial guardrail metrics, particularly considering the context of a fintech onboarding flow.
- Identify Pitfalls and Biases: Discuss key pitfalls and biases that could affect the experiment's validity or interpretation. Examples include novelty effects, potential cannibalization between the CTAs, and heterogeneous effects across different user segments.
Assumptions
- You have the capability to run an A/B test on page traffic.
- You must define the unit of randomization for your experiment.
- You must outline the analysis approach.