D Question 1 1 pts According to the text book, most Likert scale "purists" would say that a scale has to provide an odd number of response options in order to be considered a Likert scale. True False Question 2 1 pts The System Usability Scale (SUS) is readily available and widely used for collecting ratings of the perceived usability of a product. O True False Question 3 1 pts A metric that includes both pre-task ratings of how easy/difficult a participant expects a task to be and post-task ratings of how easy/difficult a participant actually found the task to be is called: An After-Scenario Questionnaire A Single Ease Question An anticipation measure An expectation measure Question 4 2 pts According to the text book, which of the following statements are true about use of open- ended questions in usability studies? [Select 2 answers] There is a standard metric that must always be used for summarizing responses from open ended questions. Open-ended questions should never be used to provide supplemental information in usability studies, because this additional information might contradict the results of performance ratings. It is challenging to summarize responses from open-ended questions. Text mining is one way of analyzing text from open-ended responses. D Question 1 1 pts According to the text book, most Likert scale "purists" would say that a scale has to provide an odd number of response options in order to be considered a Likert scale. True False Question 2 1 pts The System Usability Scale (SUS) is readily available and widely used for collecting ratings of the perceived usability of a product. O True False Question 3 1 pts A metric that includes both pre-task ratings of how easy/difficult a participant expects a task to be and post-task ratings of how easy/difficult a participant actually found the task to be is called: An After-Scenario Questionnaire A Single Ease Question An anticipation measure An expectation measure Question 4 2 pts According to the text book, which of the following statements are true about use of open- ended questions in usability studies? [Select 2 answers] There is a standard metric that must always be used for summarizing responses from open ended questions. Open-ended questions should never be used to provide supplemental information in usability studies, because this additional information might contradict the results of performance ratings. It is challenging to summarize responses from open-ended questions. Text mining is one way of analyzing text from open-ended responses