Exam answers for: Joyca Kuijpers for June 11 2022 16:26:10 Experiment Nation

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1. In Frequentist statistics, which of the following is the risk of testing too many KPIs?
Answer Provided: ? Increased chance of a false positive

Correct Answer: Increased chance of a false positive

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2. Which is a danger of following best practices?
Answer Provided: ? They may not work for you

Correct Answer: They may not work for you

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3. If a program’s ratio of “successful” tests (aka “win rate”) to launched tests is constantly 50%, what should you suspect?
Answer Provided: ? The CRO is not testing meaningful hypotheses or picking the KPI after the experiment has concluded

Correct Answer: The CRO is not testing meaningful hypotheses or picking the KPI after the experiment has concluded

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4. Which of the following does NOT describe what an “Experiment” is?
Answer Provided: ? A way to permanently change your website

Correct Answer: A way to permanently change your website

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5. Which is NOT a characteristic of “Novelty effects”?
Answer Provided: ? Early results observed generally with new visitors.

Correct Answer: New features always perform the best

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6. Which is NOT a valid reason to run an A/A test?
Answer Provided: ? To collect data to calculate sample size

Correct Answer: To measure the confidence of your control

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7. What is not a valid CRO option when a site has little traffic?
Answer Provided: ? Believe you cannot run any tests

Correct Answer: Believe you cannot run any tests

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8. What does “ARPU” stand for?
Answer Provided: ? Average Revenue Per User

Correct Answer: Average Revenue Per User

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9. What is “bias”?
Answer Provided: ? When an experimenter believes something to be true

Correct Answer: It is a systemic preference towards something

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10. Which of the following describes a “Holdout Group”?
Answer Provided: ? A control group that does not get exposed to a treatment/variation

Correct Answer: A control group that does not get exposed to a treatment/variation

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11. What does “MVT” stand for?
Answer Provided: ? Multivariate Test

Correct Answer: Multivariate Test

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12. When writing copy, what is your #1 priority?
Answer Provided: ? Writing for clarity, not cleverness

Correct Answer: Writing for clarity, not cleverness

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13. What is a “hero image”?
Answer Provided: ? It is the largest image near the top of a webpage

Correct Answer: It is the largest image near the top of a webpage

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14. Which of the following best describes why letting a test run longer than planned may not be beneficial?
Answer Provided: ? You are probably not testing something very impactful

Correct Answer: You are probably not testing something very impactful

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15. Which of the following is NOT a benefit of test iteration?
Answer Provided: ? You get to build off of past learnings

Correct Answer: Increased statistical power

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16. Which BEST defines “Baseline Conversion”?
Answer Provided: ? The most recently recorded conversion rate of the metric you want to measure

Correct Answer: The most recently recorded conversion rate of the metric you want to measure

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17. Which BEST describes an experiment “Hypothesis”?
Answer Provided: ? An educated guess as to what will happen during your experiment

Correct Answer: An educated guess as to what will happen during your experiment

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18. Which of the following BEST describes “statistical significance”?
Answer Provided: ? The probability the result observed was not due to random chance

Correct Answer: The probability the result observed was not due to random chance

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19. Which BEST describes why you should always define a “Test Hypothesis”
Answer Provided: ? To clearly set a goal to your experiment

Correct Answer: To ensure you learn, no matter what the test outcome because the experiment will either prove or disprove your hypothesis

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20. Which of the following is NOT an example of urgency?
Answer Provided: ? Customers like you also liked this.

Correct Answer: Customers like you also liked this.

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21. Which of the following is an example of scarcity?
Answer Provided: ? Only 7 left in stock.

Correct Answer: Only 7 left in stock.

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22. Which of the following is an example of social proof?
Answer Provided: ? Customers like you also liked this.

Correct Answer: Customers like you also liked this.

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23. Which of the following CANNOT help you write copy for conversion?
Answer Provided: ? Rewriting competitors’ messaging

Correct Answer: Mining customer reviews and testimonials.Rewriting competitors’ messaging

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24. What can we learn from tests run on sites that aren’t our own?
Answer Provided: ? What worked for them and their audience

Correct Answer: What worked for them and their audience

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25. What should you do if you want to experiment on a website with little traffic?
Answer Provided: ? Test high-impact changes

Correct Answer: Test high-impact changes

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26. What is qualitative research used for ?
Answer Provided: ? Understanding why your users are behaving a certain way

Correct Answer: Understanding why your users are behaving a certain way

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27. After you have completed your conversion audit and have a list of hypotheses, what is the next step you need to take?
Answer Provided: ? Prioritize the hypotheses based on your framework of choice

Correct Answer: Prioritize the hypotheses based on your framework of choice

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28. Which of the following is NOT a good strategy for analyzing test results?
Answer Provided: ? None of the answers

Correct Answer: None of the answers

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29. A test has a >50% lift to your primary metric. What is the first thing you should do?
Answer Provided: ? Sanity check your results

Correct Answer: Sanity check your results

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30. An experiment demonstrates a 10% decrease in conversion rate at a 99% confidence level. In what way is this still a ‘win’?
Answer Provided: ? You’ve saved the business time and money which they might have by implementing this costly feature

Correct Answer: You’ve saved the business time and money which they might have by implementing this costly feature

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