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However, these experiments have not provided user interface designers with an understanding of the severity or the nature of the difficulties young children have when using input devices. To address this need, we conducted a study to gain a better understanding of 4 and 5 year-old children's use of mice. We compared the performance of thirteen 4 year-olds, thirteen 5 year-olds and thirteen young adults in point-and-click tasks. Plots of the paths taken by the participants show severe differences between adults' and preschool children's ability to control the mouse. We were not surprised then to find age had a significant effect on accuracy, target reentry, and efficiency. We also found that target size had a significant effect on accuracy and target reentry. Measuring movement time at four different times (first entering target, last entering target, pressing button, releasing button) yielded the result that Fitts' law models children well only up to the time they first enter the target. Overall, we found that the difference between the performance of children and adults was large enough to warrant user interface interactions designed specifically for preschool children. The results additionally suggest that children need the most help once they get close to targets.<\/jats:p>","DOI":"10.1145\/1035575.1035577","type":"journal-article","created":{"date-parts":[[2005,1,26]],"date-time":"2005-01-26T16:35:53Z","timestamp":1106757353000},"page":"357-386","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":106,"title":["Differences in pointing task performance between preschool children and adults using mice"],"prefix":"10.1145","volume":"11","author":[{"given":"Juan Pablo","family":"Hourcade","sequence":"first","affiliation":[{"name":"University of Maryland, College Park, MD"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benjamin B.","family":"Bederson","sequence":"additional","affiliation":[{"name":"University of Maryland, College Park, MD"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allison","family":"Druin","sequence":"additional","affiliation":[{"name":"University of Maryland, College Park, MD"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fran\u00e7ois","family":"Guimbreti\u00e8re","sequence":"additional","affiliation":[{"name":"University of Maryland, College Park, MD"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"320","published-online":{"date-parts":[[2004,12]]},"reference":[{"key":"e_1_2_1_1_1","volume-title":"Proceedings of Human Factors in Computing Systems (CHI 97)","author":"Accot J.","unstructured":"Accot , J. and Zhai , S . 1997. 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