Exam answers for: Juanma Varo for May 30 2022 11:25:39 Experiment Nation

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1. 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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2. What is the most important step you can take to increase your funnel’s final conversion rate?
Answer Provided: ? Identify the biggest drop-off points and prioritize fixing those

Correct Answer: Identify the biggest drop-off points and prioritize fixing those

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3. Confidence levels must be which of the following?
Answer Provided: ? Set based on the needs of an experiment

Correct Answer: Set based on the needs of an experiment

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4. Which of the following is TRUE of best practices?
Answer Provided: ? They are a good starting point for ideation and testing

Correct Answer: They are a good starting point for ideation and testing

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5. Which of the following is not one of Cialdini’s 6 Principles of Persuasion?
Answer Provided: ? Humour

Correct Answer: Humour

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6. 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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7. 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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8. Which is NOT a characteristic of “Novelty effects”?
Answer Provided: ? New features always perform the best

Correct Answer: New features always perform the best

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9. What of the following is NOT true about a Unique Selling (or Value) Proposition?
Answer Provided: ? Customers know what it is before landing on your property

Correct Answer: Customers know what it is before landing on your property

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10. Which of the following sources of data has the least amount of bias?
Answer Provided: ? Meta-analyses

Correct Answer: Meta-analyses

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11. What is “flicker”?
Answer Provided: ? When the contents of a variation visibily change during loading because your testing tool is overriding existing code

Correct Answer: When the contents of a variation visibily change during loading because your testing tool is overriding existing code

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12. Which generally happens when testing many variants running at once?
Answer Provided: ? It is harder to measure

Correct Answer: The power of your experiment decreases drastically

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13. 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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14. In A/B testing, a “control” is generally which of the following?
Answer Provided: ? The version where no changes have been made

Correct Answer: The version where no changes have been made

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15. 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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16. Which is NOT a factor in calculating sample size (in Frequentist statistics)?
Answer Provided: ? Time

Correct Answer: Time

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17. Which BEST describes a CTA / call to action?
Answer Provided: ? A prompt telling the user to take an action

Correct Answer: A prompt telling the user to take an action

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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 of the following is NOT a benefit of test iteration?
Answer Provided: ? Increased statistical power

Correct Answer: Increased statistical power

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20. 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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21. 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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22. “PMF” stands for which of the following?
Answer Provided: ? Product-Market Fit

Correct Answer: Product-Market Fit

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23. The “C” in “VOC” stands for which of the following?
Answer Provided: ? Customer

Correct Answer: Customer

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24. What is a “Bonferroni Correction”?
Answer Provided: ? A way to control for false positives when analyzing multiple metrics

Correct Answer: A way to control for false positives when analyzing multiple metrics

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25. 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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26. 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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27. 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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28. Which of the following best describes why letting a test run longer than planned may not be beneficial?
Answer Provided: ? Experiment interaction is harder to plan for

Correct Answer: You are probably not testing something very impactful

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29. 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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30. “AIDA” stands for which of the following?
Answer Provided: ? Attention, Interest, Desire, Action

Correct Answer: Attention, Interest, Desire, Action

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