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Question 1 of 25
1. Question
When measuring usability:
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Question 2 of 25
2. Question
The key objective usability metrics at the task level are:
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Question 3 of 25
3. Question
The most important subjective usability metric to capture at the task level is:
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Question 4 of 25
4. Question
A common way to assess customer loyalty is with:
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Question 5 of 25
5. Question
Which questionnaire has items to collect ratings of perceived ease-of-use and perceived usefulness (features meet needs)?
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Question 6 of 25
6. Question
Which of the following is an example of discrete binomial data?
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Question 7 of 25
7. Question
Which of the following is the best method for evaluating whether users can find a needed function?
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Question 8 of 25
8. Question
Which participant characteristic tends to have the biggest impact on UX metrics?
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Question 9 of 25
9. Question
When working with panels:
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Question 10 of 25
10. Question
In a top task survey, you should:
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Question 11 of 25
11. Question
For unmoderated usability testing, two ways to validate successful task completion are:
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Question 12 of 25
12. Question
The fundamental metrics for individual usability problems are:
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Question 13 of 25
13. Question
All other things being equal, which data set will have a wider confidence interval?
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Question 14 of 25
14. Question
All other things being equal, which analysis will produce a wider confidence interval?
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Question 15 of 25
15. Question
The width of a confidence interval is:
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Question 16 of 25
16. Question
Which of the following statements is true?
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Question 17 of 25
17. Question
You get a p-value of .01 and conclude the designs are different. What error can you make?
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Question 18 of 25
18. Question
Which of the following is true about formal hypothesis testing?
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Question 19 of 25
19. Question
You want to compare SUS (System Usability Scale) data you collected from 10 participants who used the current design and 9 other participants who used a new design. Which type of test should you run?
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Question 20 of 25
20. Question
You’ve run a usability study of your online retail site in which 13/15 participants successfully completed an online purchase. In a study of the same task with a competitor’s website, there were 5 successes out of 9 participants. You want to know if the success rate with your design is significantly better than with the competitive design. What type of test should you use to analyze the data?
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Question 21 of 25
21. Question
All other things being equal, which decision will require a larger sample size?
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Question 22 of 25
22. Question
All other things being equal, which decision will require a larger sample size?
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Question 23 of 25
23. Question
All other things being equal, which decision will require a larger sample size?
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Question 24 of 25
24. Question
The “20/20” rule of precision refers to the observation that:
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Question 25 of 25
25. Question
To cut a margin of error approximately in half, you need to:
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