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18	18	Besides, Our group decided to use a mixed-method approach for the evaluation.
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20		-* Quantitative data will be derived during the experiment such as the number of mistakes the participant makes during the quiz. The participants were also asked to provide a score based on the given system usability scale^^1^^.
	20	+* Quantitative data will be derived during the experiment such as the number of mistakes the participant makes during the quiz. The participants were also asked to provide a score based on the given system usability scale^^[1]^^.
21	21	* Qualitative data expected to be gathered through questionnaires, such as to what extent participants are satisfied with using the robot, is also adopted for evaluation.
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23	23	By measuring these two types of data, we will manage to assess if our claims are achieved and the research questions are answered.
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106	106	From the middle figure, we can find that people in group A tend to think our robot can help improve the memory task and only a few of them thought our robot is annoying, as shown in the right figure.
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108		-[[image:result4.png||height="400px"]]
	108	+[[image:result4.png||height="200px"]]
109	109	As shown in the above figure, group A with our intelligent robot gave our robot an average score of 66.7, and group B with the dumb robot gave 58.2. In this scale, we can see that participants are more willing to play with our intelligent robot.
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111	111	Also, we collect some feedback from the participants. Most of them liked the appearance of the robot which is consistent with the reasons we choose the NAO. People are more engaged and willing to interact with a humanoid robot. Some of them complained about the speech recognition of this robot.