Adjusting Fitts’ Paradigm for Small Touch-Sensitive Input Device with Large Group of Users
Fitts’ paradigm is a classic theory to describe the relationship between movement time, distance and accuracy for rapid aimed movement. Generally speaking, it describes the Speed-Accuracy Tradeoff (SAT) along task condition as well as along users. A controlled factorial experiment is conducted for s...
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| Published in | Proceedings of the Human Factors and Ergonomics Society Annual Meeting Vol. 56; no. 1; pp. 1892 - 1896 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Los Angeles, CA
SAGE Publications
01.09.2012
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| Online Access | Get full text |
| ISSN | 1541-9312 1071-1813 2169-5067 |
| DOI | 10.1177/1071181312561275 |
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| Abstract | Fitts’ paradigm is a classic theory to describe the relationship between movement time, distance and accuracy for rapid aimed movement. Generally speaking, it describes the Speed-Accuracy Tradeoff (SAT) along task condition as well as along users. A controlled factorial experiment is conducted for small touch-sensitive input device to observe SAT relationship within task condition and large number of users. Fitts’ paradigm did not successfully model the SAT relationship, due to ambiguous definition of accuracy index and lack of variables to reflect subject bias. Fitts’ paradigm was adjusted by revising accuracy index appropriate for direct finger input, and by introducing a trajectory variable to keep track of the subject bias. It raised the model fit (R2) from 0.523 to 0.833 for a model of task condition. |
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| AbstractList | Fitts’ paradigm is a classic theory to describe the relationship between movement time, distance and accuracy for rapid aimed movement. Generally speaking, it describes the Speed-Accuracy Tradeoff (SAT) along task condition as well as along users. A controlled factorial experiment is conducted for small touch-sensitive input device to observe SAT relationship within task condition and large number of users. Fitts’ paradigm did not successfully model the SAT relationship, due to ambiguous definition of accuracy index and lack of variables to reflect subject bias. Fitts’ paradigm was adjusted by revising accuracy index appropriate for direct finger input, and by introducing a trajectory variable to keep track of the subject bias. It raised the model fit (R 2 ) from 0.523 to 0.833 for a model of task condition. Fitts’ paradigm is a classic theory to describe the relationship between movement time, distance and accuracy for rapid aimed movement. Generally speaking, it describes the Speed-Accuracy Tradeoff (SAT) along task condition as well as along users. A controlled factorial experiment is conducted for small touch-sensitive input device to observe SAT relationship within task condition and large number of users. Fitts’ paradigm did not successfully model the SAT relationship, due to ambiguous definition of accuracy index and lack of variables to reflect subject bias. Fitts’ paradigm was adjusted by revising accuracy index appropriate for direct finger input, and by introducing a trajectory variable to keep track of the subject bias. It raised the model fit (R2) from 0.523 to 0.833 for a model of task condition. |
| Author | Kim, Inki Jo, Jang Hyeon |
| Author_xml | – sequence: 1 givenname: Inki surname: Kim fullname: Kim, Inki organization: Harold and Inge Marcus Department of Industrial and Manufacturing Engineering, The Pennsylvania State University, University Park, Pennsylvania – sequence: 2 givenname: Jang Hyeon surname: Jo fullname: Jo, Jang Hyeon organization: Samsung Electronics |
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| Cites_doi | 10.1016/0001-6918(69)90034-1 10.1037/h0055392 10.1037/h0022970 10.4324/9781003176688-2 10.1017/S0140525X97001441 10.3758/BF03205475 10.1016/j.ijhcs.2004.09.007 10.1037/0096-1523.1.2.147 10.1214/aoms/1177731569 10.1145/1152215.1152260 10.1016/j.ijhcs.2004.09.001 10.1016/0001-6918(86)90002-8 10.1177/154193128402800722 10.1016/0001-6918(77)90012-9 10.1080/14640748308402133 10.1145/365024.365028 10.1145/302979.303042 10.1080/17470216008416694 10.1145/258549.258760 10.1145/1240624.1240726 10.1109/21.59975 10.1016/S0301-0511(99)00045-9 10.1080/00222895.1989.10735486 10.1007/3-540-45348-2_21 10.1080/00222895.1976.10735061 10.1080/00140136008930484 |
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| References | Langolf, Chaffin, Foulke 1976; 8 Welford 1960; 3 Buck 1986; 62 Osman, Lou, Muller-Gethmann, Rinkenauer, Mattes, Ulrich 2000; Volume 51 Welford, Norris, Shock 1969; 30 Fitts 1954; 47 Crossman, Goodeve 1983; 35A Soukoreff, MacKenzie 2004; 61 Klapp 1975; 1 Fitts, Radford 1966; 71 2002 Plamondon, Alimi 1997; 20 Zhai, Kong, Ren 2004; 61 MacKenzie 1989; 21 Crossman 1960; 12 Ruthruff 1996; 58 Mann, Wald 1942; Vol. 13 Wickelgren 1977; 41 bibr9-1071181312561275 bibr21-1071181312561275 bibr13-1071181312561275 bibr4-1071181312561275 bibr26-1071181312561275 bibr17-1071181312561275 bibr30-1071181312561275 bibr27-1071181312561275 bibr14-1071181312561275 bibr22-1071181312561275 bibr5-1071181312561275 bibr8-1071181312561275 bibr31-1071181312561275 bibr18-1071181312561275 bibr15-1071181312561275 bibr2-1071181312561275 bibr23-1071181312561275 bibr6-1071181312561275 bibr10-1071181312561275 bibr1-1071181312561275 Welford A. T. (bibr28-1071181312561275) 1968 bibr19-1071181312561275 bibr3-1071181312561275 bibr11-1071181312561275 bibr25-1071181312561275 bibr24-1071181312561275 bibr7-1071181312561275 bibr12-1071181312561275 bibr29-1071181312561275 bibr16-1071181312561275 bibr20-1071181312561275 |
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| Title | Adjusting Fitts’ Paradigm for Small Touch-Sensitive Input Device with Large Group of Users |
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