Changes for page Test

Last modified by Mathieu Jung-Muller on 2022/04/04 13:52

From version Icon 117.1
edited by Mathieu Jung-Muller
on 2022/04/04 13:52
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To version Icon 116.1 Icon
edited by Mathieu Jung-Muller
on 2022/04/04 12:20
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105 105  1. CL11: The PwD feels content.
106 106  There is a question related to this in the questionnaire.
107 107  
108 -
109 109  == Method ==
110 110  
111 111  In order to collect qualitative data, we prepared two questionnaires to give to the participants: the affect assessment questionnaire and the system assessment questionnaire. All questionnaire questions are expressed in the form of statements and the participant can express one out of seven levels of agreement/disagreement from strongly disagree to strongly agree. The only exception is the additional remarks field at the end of the system assessment questionnaire, where the participants can freely put any comment/remark/feedback they have on the experiment.
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149 149  1. How was Pepper's ability to guide the participant through the task? [Questions: 4]
150 150  
151 151  Question 1 is used to take into consideration the expected baseline enjoyment of the task for each participant.
152 -We also intended to use question 2 for similar subgroups, but there were not enough different answers to get a significant number of participants in each subgroup.
153 153  
154 -
155 155  == Participants ==
156 156  
157 157  In our situation, our participants are 24 students from TUD. Most of them come from Computer Science and/or from the SCE class. One third of them are female and two thirds male, so gender balance is decent.
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161 161  
162 162  Since our evaluating process is relatively short, we use within-subject, which means each participant goes through all conditions. In this way, our experiment tends to have more statistical power and less variability.
163 163  
164 -
165 165  == Tasks ==
166 166  
167 167  All participants will go through our designed testing process, which combines a calendar event reminder and an activity breakdown.
168 168  Pepper will propose the activity to the participant, then go step by step with them through the activity.
169 169  
170 -
171 171  == Measures ==
172 172  
173 173  We measure the mood of the participants through the affect assessment questionnaires. We also measure some aspects of the interaction between Pepper and the participant through the system assessment questionnaire. Both are qualitative data, as the participant gives an answer ranging from strongly disagree to strongly agree.
174 174  
175 -
176 176  == Procedure ==
177 177  
178 178  Before the experiment, we explain to the participants the purpose of our evaluation (context of SCE class, our prototype).
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183 183  After the activity is finished by the participant, they fill the second affect questionnaire and the system assessment questionnaire.
184 184  After this is done, we thank them for their participation and the evaluation session is over.
185 185  
186 -
187 187  == Material ==
188 188  
189 189  1. Consent form. To protect the privacy of participants and ensure the evaluation process goes smoothly, we will ask participants to sign a consent form, indicating they are willing to take part in the evaluation and the data gathered from the experiment will be analyzed by researchers. The consent form is accessed online via a QR code.
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191 191  1. Pepper robot. Our robot is programmed using Choregraphe. The robot will have the same behaviour for every participant. However, the input data will be entered by the HCP (and potentially the relatives).
192 192  1. Gardening stuff. In order to conduct the activity, we bought and brought basic stuff required for gardening (soil, pot, seeds, etc).
193 193  
194 -
195 195  == Results ==
196 196  
197 197  The following sections contains the results gather from the affect and system assessment. Apart from the printed version being included below, the results are also included as interactive graphs. To get a better version with more information (data point information on mouse hovering for instance), simply click the provided link for each graph.
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601 601  
602 602  This graph shows that the trust in Pepper was highly dependent on whether the participants enjoyed the activity or not.
603 603  
604 -
605 605  == Discussion ==
606 606  
607 607  === Evaluation key properties ===
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628 628  Regarding social assessment, the participants barely agree that Pepper cared about helping them. This may be caused by the fact that most of them are Computer Science and/or SCE class students. Such students are very conscious that Pepper is nothing more than the behaviour we implemented. Some participants even tried to find edge cases to test the answers of Pepper. It would be very useful to conduct the same experiment on average people randomly chosen to see whether the answers are the same. If they are, then that would be a good point to improve.
629 629  Finally, still in terms of social assessment, whether the participants would trust Pepper with more important activities greatly depends on whether they like gardening or not, which highlights the importance of having specific tasks for the specific patients.
630 630  
622 +
631 631  === Observations ===
632 632  
633 633  We also made some observations while monitoring the evaluation sessions.
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635 635  We also noticed that participants had some difficulties interacting with Pepper in the beginning. Specifically, and although we did mention it to them, they very often spoke while the eyes were not blue. Since Pepper was not listening, they often got confused and did not know what to do. Most often, they simply repeated their answer, and then it worked. Sometimes, we had to remind them about the blue eyes. Usually, after a couple of steps of the activity, they got used to it. Overall, the ease of interaction with Pepper greatly improved over time.
636 636  
637 637  
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632 +
633 +
634 +
635 +
636 +
638 638  == Conclusions ==
639 639  
640 640  The results from the mood questionnaire seem to support our claims CL10: the PwD feels reassured and CL11: the PwD feels content.
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648 648  
649 649  We did not have any question explictly aimed at targeting our claim CL08. However, frustration, annoyance and pressure are often linked to a lack of understanding from the other part. We can combine these with the question about whether Pepper cared about helping the participants, and with our observations during the experiment. When aggregated together, it seems that generally speaking, the participants felt understood. This supports our claim CL08: the PwD feels understood.
650 650  
651 -
652 652  == Limitations ==
653 653  
654 654  Although there seems to be a slight general trend that shows that our claim are satisfied, there are many limitations to take into account that reduce the significance of the results.