D Question 7 1 pts A survey designed to measure confusion indicates that users u

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D Question 7 1 pts A survey designed to measure confusion indicates that users understand a new interface the first time they use it, but upon re-testing indicates that users are in fact confused. This scale has a high degree of reliability False True D Question 8 1 pts Mustapha discovers that most users of a new bar-code scanning device can complete about 25 price scans per minute. But there are a few experts who can complete more than 100 scans per minute. Including these experts in the data set likely results in a skewed distribution of completion time scores. True e False

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questions are in serial

Answer 7- True

Answer 8- False

Answer 9- External validity

Answer 6- True

Answer 5- Making sure people can interpret the meaning of symbols on a piece of industrial equipment

Answer 4- Between subjects

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