Q. Why is a within-subjects design chosen for the icon design experiment?

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Q. What is the purpose of varying the placement of icons within the blocks on each presentation?

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Q. What statistical test is used to analyze the differences between completion times for natural and abstract icons?

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Q. Why is the standard error of the difference (s.e.d.) calculated in the analysis of the results?

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Q. What is one of the challenges when conducting experimental studies involving groups compared to single-user experiments?

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Q. Why might arranging suitable time slots for group experiments be challenging?

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Q. What factor influences the choice of experimental tasks for group studies of groupware systems?

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Q. What kind of tasks are often used in group experiments to encourage active cooperation and consensus-building?

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Q. In the context of group experiments, what might be a challenge when interpreting results involving a small number of participant groups?

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Q. In decision games used for cooperative activity training, what is often emphasized for success?

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Q. Which of the following scenarios involves a task that requires group coordination and cooperation?

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Q. How do time-critical simulated process control tasks impact group interaction?

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Q. What is one challenge related to data gathering in group experiments compared to single-user experiments?

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Q. How can data gathering be managed in group experiments to recreate participants' perspectives?

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Q. What is an advantage of recording group interactions using synchronized clocks for each participant?

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Q. Why is statistical analysis challenging in group experiments compared to single-user experiments?

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Q. How does the presence of dominant participants and varied group dynamics impact experimental results in group studies?

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Q. In a group experiment, what factor can lead to the need for a larger number of groups to achieve statistical significance?

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Q. Why might the challenge of gathering a sufficient number of experimental groups be more pronounced in group experiments compared to single-user experiments?

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Q. In group experiments, what is one advantage of using microanalysis of features like gaps between utterances?

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