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TOJET: The Turkish Online Journal of Educational Technology – October 2012, volume 11 Issue 4 that this system is not complicated. In Q3, there are 90.0% of users consider this system easy to use, while in Q4, 40% of users think that they need extra assistance from the technicians to operate this system. In Q5, over 90% of users consider the system functions well-integrated. What’s more, in Q6, 80% of users do not think the system contains many contradictions. In Q7, there are 85% of users believing they do not need much time to learn how to use this system and in Q8, over 90% of users think of using the system as not difficult. In Q9, 85% of users have strong faith in operating this system, while in Q10, 80% of users believe that they need to have some background knowledge prior to using this learning system. Based on the mean of SUS, 75.0, as well as the question analysis from Q1 all the way through to Q10, it is concluded that this system has good usability. Table 3 Descriptive Statisitcs of SUS Mean, standard deviation, skewness, and kurtosis Question Percentage of the Five Point Scale( % ) 1 2 3 4 5 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Overall 3.80 .696 .292 -.734 0 0 35.0 50.0 15.0 3.85 .489 -.442 1.304 0 0 20.0 75.0 5.0 4.15 .587 -.004 .178 0 0 10.0 65.0 25.0 3.30 .923 .214 -.595 0 20.0 40.0 30.0 10.0 3.95 .394 -.531 4.985 0 0 10.0 85.0 5.0 4.00 .795 -.699 .807 0 5.0 15.0 55.0 25.0 4.30 .733 -.553 -.834 0 0 15.0 40.0 45.0 4.35 .813 -1.42 2.379 0 5.0 5.0 40.0 50.0 4.40 .754 -.851 -.609 0 0 15.0 30.0 55.0. 3.90 .852 -.930 1.012 0 10.0 10.0 60.0 20.0 4.00 .703 -.492 .789 0 4.0 17.50 53.0 25.50 Analysis of Questionnaire for User Interaction Satisfaction (QUIS) In this study, the result of QUIS reliability analysis in terms of its six aspects is seen as Table 4. Among the six aspects, except the reliability value of “terminology and system information” being 0.535, which is less than 0.7, the rest all reaches the general desired value 0.7. Table 4 Reliability Analysis of User Interaction Satisfaction Aspect Overall User Feedback Screen Presentation Terminology and System Information 0.869 0.799 0.535 Learning operation system System performance User interface usability 0.719 0.833 0.757 As it is shown in Table 5, the score of “user interface usability” is much lower than the mean. On the other hand, the reason why the score of “terminology and system information” is slightly lower than the mean is probably because the interface layout is not user-friendly enough. Besides, the interface contains more English explanation than Chinese. In this case, to students who are native Chinese speakers, they may have difficulty operating the system in a direct method. Nevertheless, the score of “learning operation system” and “system performance” is 6.17 and 6.40 respectively, indicating that this ATS is still acceptable to users. It is concluded that (1) the usability of ATS is good. With respect to “overall user feedback” and “screen presentation,” the score is 7.05 and 7.30 respectively. They have the best two scores, indicating that though the interface usability may not be the most satisfying element, screen presentation does improve this weakness. Therefore, users have positive feedback concerning the operation of ATS as a whole. Since the “overall user feedback” scores as high as 7.05, it is concluded that (2) users are satisfied with ATS. However, in the aspect of “overall user feedback,” the non-experienced group scores 7.11, higher than the experienced group scoring 6.89. This may be the result that the non-experienced group has never experienced such a learning system before; therefore, their first experience is totally new and interesting to them. That’s why the system arouses their positive feedback. Therefore, it is concluded that (3) the interaction of ATS is indeed attractive to users. Table 4-6 demonstrates the result of descriptive statistics and T-test analysis of QUIS aspects. Copyright © The Turkish Online Journal of Educational Technology 423
Overall user feedback TOJET: The Turkish Online Journal of Educational Technology – October 2012, volume 11 Issue 4 Table 5 Descriptive Statisitcs of QUIS Experienced(22 people) average Standard deviation Non-experienced(18 people) average Standard deviation Copyright © The Turkish Online Journal of Educational Technology total(40people) P-value (double average Standard deviation -tailed test) 6.89 1.01 7.11 0.49 7.05 1.03 0.415 Screen presentation 7.19 0.732 7.43 0.77 7.30 0.94 0.324 Terminology and 6.51 0.47 5.97 0.40 6.27 0.91 0.000* Learning operation i 6.50 0.70 5.76 0.41 6.17 1.106 ** 0.000* system ** System performance 6.34 0.50 6.47 0.66 6.40 1.25 0.481 User interface 5.88 0.64 5.30 0.58 5.62 1.09 0.005* usability * Average 6.55 0.68 6.34 0.55 6.47 1.05 0.204 (P-value suggests the comparison between the experienced group with the non-experienced group.) Notice: * means p
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THE TURKISH ONLINE JOURNAL OF EDUCA
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Dear Colleagues, TOJET: The Turkish
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Annotation retrieval TOJET: The Tur
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Learning effectiveness TOJET: The T
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Appendix A: Questionnaire TOJET: Th
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Computer Use Transformational Leade
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clarify their misconceptions. TOJET
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Statement Analysis TOJET: The Turki
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