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189	189	We produced our results as interactive graphs. Only a printed version is shown below. To get a better version with more information (data point information on mouse hovering for instance), click the provided link for each graph.
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	191	+For the statistical test, we used the Wilcoxon test because we do not assume that our data is normally distributed.
	192	+we used the Wilcoxon Signed-rank test to measure the statistical significance of the mood change before and after Pepper's interaction because the data comes from the same group of participants.
	193	+To measure the statistical significance between two different groups (liking gardening group and disliking gardening group) we use the Wilcoxon Rank-Sum test.
	194	+The statistics value of the test is the sum of the difference in the rank.
	195	+the p-value is the probability of obtaining results at least as extreme as the one we obtained given that the null hypothesis is true. We decided to set a threshold of 5% to claim statistical significance.
	196	+
191	191	=== Affect assessment ===
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193	193	[[Affect assessment, interactive version>>https://pietro99.github.io/SCE/graphs/mood_questionnaire.html]]
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572	572	* Scope: No. It would be very difficult to generalize the results, since each prototype is built for a special patient. However, if the results conclude that the customized prototypes did improve the well-being of the people, then similar effort to customize Pepper for more patients should produce similar effects.
573	573	* Ecological validity: Yes. Since we compare "without Pepper" (BEFORE) and "with Pepper" (AFTER) in a similar environment (i.e., for everything but Pepper), the results are not dependent on the environment.
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575		-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 pepper. the results showed that, in general, there is a slight increase in positive moods and a slight decrease in negative moods. 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. This confirms that PwD can potentially benefit from a boost of energy from interacting with Pepper and a general improvement in contentness wich can potentially improve the quality of life of a PwD. It is often the case that PwDs have to perform tasks that are not enjoyable for them such as taking medicines or performing routine activities. In order to analyze the difference in the mood change between people who liked the activity and people who didn't we divided 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 which leads us to believe that if an activity is not enjoyable for the PwD Pepper will only decrease his/her tiredness whereas if an activity is enjoyable it will also improve his/her contentness.
	581	+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 Pepper. the results showed that, in general, there is a slight increase in positive moods and a slight decrease in negative moods. 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.
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	583	+It is often the case that PwDs have to perform tasks that are not enjoyable for them such as taking medicines or performing routine activities. In order to analyze the difference in the mood change between people who liked the activity and people who didn't we divided 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.
	584	+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.
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577	577	== Conclusions ==
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579	579	The results from the mood questionnaire seem to support our claims CL10: the PwD feels reassured and CL11: the PwD feels content.