Deliverable 4.4 - INSEAD CALT

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AtGentive IST-4-027529-STP - Attentive Agents for Collaborative LearnersThis result shows that, in the overall sample, the final outcome of the work (asrepresented by the two variables reporting the number of paragraphs written in thepaper, and the number of questions answered in the questionnaire) is correlated to thestarting level of the team, i.e. on the whole sample, better students perform better on thequestionnaire and produce longer papers).Within the Experimental sample we found different significant correlations: the team levelis significantly correlated to the ability to generate good goals (P=0.0040), and to theability to complete the questionnaire (P=0.0300), see table 18.Independent VariableChi Square Test (P_value)Questions_asked(recoded0->0,1..7->1) 0.7600Status 0.1300Intro (recoded0,..9->0,10->1) 0.8500Good_goal 0.0040Cc(recoded 0..5->0,6..10->1) 0.6900# of paragraphs (recoded 0..3->0,4…7->1) 0.2500Qualityof_paper 0.3000Questions(recoded0..5->0,6..17->1) 0.0300Table 18 - Effect of Team Level on quality of tasks performed for the Experimental SampleWithin the Control group we couldn't observe any correlation between the team level andthe quality of tasks performed (see table 19).Independent VariableChi square Test (P-value)Questions_asked( recoded0->0,1..7->1) 0.9100Status 0.6200intro(recoded0,..9->0,10->1) 0.2300Good_goal 0.8900Cc(recoded 0..5->0,6..10->1) 0.1100# of paragraphs (recoded 0..3->0,4…7->1) 0.1900Qualityof_paper 0.4100Questions (recoded0..5->0,6..17->1) 0.1100Table 19 - Effect of Team Level on quality of tasks performed for the Control Sample4.2. Conclusions about building on previous knowledgeWhilst these results would support the hypothesis that the children in Experimental groupwere better assisted in exploiting their previous knowledge, they could also indicate thatthe enhanced system would increase the gap between good students and bad students.Del <strong>4.4</strong>: AtGentive Final Evaluation Report – Appendix C page 17
AtGentive IST-4-027529-STP - Attentive Agents for Collaborative LearnersIf this was the case, good students in the Experimental group would do significantlybetter than good students in the Control group, whilst bad students in the Experimentalgroup wouldn't. In order to verify whether this was happening we used a Wilcoxon RankSum Test to compare the quality of the task performed for the Experimental and Controlgroups within specific team levels.As shown in table 20, there were no significant differences on the quality of taskperformed between the Experimental and Control groups for teams of levels low orMedium.Independent VariableWilcoxon 2-sidedExact Test Statistic, SP-valueQuestions_asked 197.0 0.11Status 225.0 1.00intro 257.0 0.33Good_goal 232.5 1.00cc 243.5 0.66# of paragraphs 230.5 0.94Qualityof_paper 208.5 0.35Questions 245.5 0.59Table 20 - Experimental and Control differences for the “L and ‘M’ group in theTeam_Level (n=30)Further, no significant differences were found when considering teams of low level only(see table 21).Independent VariableWilcoxon 2-sided Exact Te P-valueStatistic, SQuestions_asked 11.5 0.75Status 15.5 1.00intro 16.0 0.68Good_goal 15.5 1.00cc 10.0 0.39# of paragraphs 9.5 0.32Qualityof_paper 10.5 0.46Questions 17.5 0.21Table 21 - Experimental and Control differences for the “L" group in the Team_Level (n=8)Del <strong>4.4</strong>: AtGentive Final Evaluation Report – Appendix C page 18
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Deliverable 4.4 - INSEAD CALT

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