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Last modified by Mathieu Jung-Muller on 2022/04/04 13:52
From version Icon 113.2 Icon
edited by Sneha Lodha
on 2022/04/03 23:58
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To version Icon 114.7 Icon
edited by Sneha Lodha
on 2022/04/04 00:24
Change comment: There is no comment for this version

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... ... @@ -193,6 +193,7 @@
193 193  [[Affect assessment, interactive version>>https://pietro99.github.io/SCE/graphs/mood_questionnaire.html]]
194 194  [[image:mood.svg]]
195 195  Figure 1: Graphical results of affect assessment before and after conducting the evaluation activity with Pepper.
196 +
196 196  {{html}}
197 197  <!DOCTYPE html>
198 198  <html>
... ... @@ -217,12 +217,11 @@
217 217  </head>
218 218  <body>
219 219  
220 -<h5>Wilcoxon Signed-rank test</h5>
221 221  <h6><i>H0</i>: The mood distribution before and after the interaction with Pepper is the same.</h6>
222 222  
223 223  <table>
224 224   <tr>
225 - <th>test results </th>
225 + <th><i>Wilcoxon Signed-Rank results</i></th>
226 226   <th>I feel caring </th>
227 227   <th>I feel content </th>
228 228   <th>I feel calm </th>
... ... @@ -254,6 +254,7 @@
254 254  </body>
255 255  </html>
256 256  {{/html}}
257 +
257 257  Table 1: Results of wilcoxon statistical test on affect assessment
258 258  
259 259  We analyzed the participants' moods before and after the interaction with Pepper in order to be able to observe positive and negative changes that are caused by the interaction with Pepper. The hypothesis H0 is that Pepper does not have any effect, which would mean that the questionnaires 1 and 2 should give the exact same values for each of the six feelings. However, the graphs and table below show that there is a slight increase regarding positive feelings, and a slight decrease as well regarding negative feelings. The Wilcoxon Signed-rank demonstrated that the only statistically significant change happened for contentness and tiredness based on a p-value threshold of 0.05.
... ... @@ -284,12 +284,11 @@
284 284  </head>
285 285  <body>
286 286  
287 -<h5>Wilcoxon Rank-Sum test</h5>
288 288  <h6><i>H0</i>: The mood distribution after the interaction with Pepper for people who like gardening and people who do not like gardening is the same.</h6>
289 289  
290 290  <table>
291 291   <tr>
292 - <th>test results </th>
292 + <th><i>Wilcoxon Rank-Sum results</i> </th>
293 293   <th>I feel caring </th>
294 294   <th>I feel content </th>
295 295   <th>I feel calm </th>
... ... @@ -322,17 +322,25 @@
322 322  </html>
323 323  {{/html}}
324 324  
325 +Table 2: Results of Wilcoxon Rank-Sum statistical test on affect assessment for people who like vs. dislike gardening
325 325  
327 +
326 326  In order to analyze the difference in the mood change between people who liked the activity of gardening and people who did not, we divided the assessments into two groups and performed a Wilcoxon Rank-Sum test. The results show that only the contentness mood shows a statistically significant difference between the two groups. Hence, we did not notice any relevant pattern indicating a significant difference between "like gardening" and "dislike gardening" groups. It seems to be that this is not the cause of the mood improvement.
327 327  
328 328  This confirms that PwDs can potentially benefit from a boost of energy from interacting with Pepper and, if the activity is enjoyable, a general improvement in contentness as well.
329 329  
330 330  
331 -=== System assessment ===
333 +=== System Assessment ===
334 +**Task Guidance Assessment**
335 +[[System assessment, task guidance questions, interactive version>>https://pietro99.github.io/SCE/graphs/first_questionnaire_1.html]]
336 +The results of the system questionnaire will be divided into four different group with similar questions in each group. This is done to improve the readability of the results and provide a more indepth analysis of various aspects of the system setup.
332 332  
333 -[[System assessment, first subset of questions, interactive version>>https://pietro99.github.io/SCE/graphs/first_questionnaire_1.html]]
334 334  [[image:group1.svg]]
339 +Figure 2: Graphical representation of results for task guidance subset of the system assessment, with results shown for people who like vs. dislike gardening, along with the average of the sample.
335 335  
341 +
342 +The first group, namely task guidance assessment, contains questions aimed at measuring how easy and pleasant was the activity when being guided by Pepper. The responses for this group are around the slightly agree line, a bit higher for the "Pepper was easy to understand" statement and a bit lower for the "I enjoyed the task more than if I had had to do it alone".
343 +
336 336  {{html}}
337 337  <!DOCTYPE html>
338 338  <html>
... ... @@ -357,12 +357,11 @@
357 357  </head>
358 358  <body>
359 359  
360 -<h5>Wilcoxon Rank-Sum test</h5>
361 361  <h6><i>H0</i>: The distribution of answers from people who like gardening and people who do not like gardening is the same.</h6>
362 362  
363 363  <table>
364 364   <tr>
365 - <th>test results </th>
372 + <th><i>Wilcoxon Rank-Sum results</i></th>
366 366   <th>I would have known how to do the whole task without Pepper.</th>
367 367   <th>I think Pepper made the task easier for me.</th>
368 368   <th>I enjoyed the task more than if I had had to do it alone.</th>
... ... @@ -391,10 +391,9 @@
391 391  </body>
392 392  </html>
393 393  {{/html}}
401 +Table 3: Results of Wilcoxon Rank-Sum statistical test on task guidance subset of system assessment for people who like vs. dislike gardening
394 394  
395 -In this first system assessment graph, it is shown that participants slightly agree that Pepper made the task easier for them, and generally agree that she was easy to understand.
396 396  
397 -
398 398  [[System assessment, second subset of questions, interactive version>>https://pietro99.github.io/SCE/graphs/first_questionnaire_2.html]]
399 399  [[image:group2.svg]]
400 400