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When two children work together on one computer, it is necessary for them to share the input devices. This study examines the effects of having multiple mice with two different control passing protocols: Give and Take. The results suggest that having two mice instead of a single mouse affects the performance of a pair of children playing on a shared computer. This result was gender dependent in that girls solved the most puzzles in the Give condition while boys solved the most puzzles in the Take condition.
Inkpen et al. (Sun,) studied this question.