Article

Validation of a keystroke-level model for a text entry system used by people with disabilities

Authors: H. H. Koester, S. P. LevineAuthors Info & Claims

Assets '94: Proceedings of the first annual ACM conference on Assistive technologies

Pages 115 - 122

https://doi.org/10.1145/191028.191061

Published: 31 October 1994 Publication History

Abstract

A keystroke-level model of user performance was developed to predict the improvement in text generation rate with a word prediction system relative to letters-only typing. Two sets of model simulations were tested against the actual performance of able-bodied and spinal cord injured subjects. For Model 1A, user parameter values were determined independently of subjects' actual performance. The percent improvements predicted by Model 1A differed from the actual improvements by 11 percentage points for able-bodied subjects and 53 percentage points for spinal cord injured subjects. Model 1B employed user parameter values derived from subjects' data and yielded more accurate simulations, with an average error of 6 percentage points across all subjects.

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Paula dos Santos CGranville LLoewenstern DShwartz LAnerousis N(2019)A Mashup-Based Approach to Optimize Human Performance in IT Service ManagementHuman Performance Technology10.4018/978-1-5225-8356-1.ch083(1678-1714)Online publication date: 2019
https://doi.org/10.4018/978-1-5225-8356-1.ch083
Kacorri H(2017)Teachable machines for accessibilityACM SIGACCESS Accessibility and Computing10.1145/3167902.3167904(10-18)Online publication date: 27-Nov-2017
https://dl.acm.org/doi/10.1145/3167902.3167904
Paula dos Santos CGranville LLoewenstern DShwartz LAnerousis N(2015)A Mashup-Based Approach to Optimize Human Performance in IT Service ManagementMaximizing Management Performance and Quality with Service Analytics10.4018/978-1-4666-8496-6.ch011(300-336)Online publication date: 2015
https://doi.org/10.4018/978-1-4666-8496-6.ch011
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Validation of a keystroke-level model for a text entry system used by people with disabilities

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Information

Published In

Assets '94: Proceedings of the first annual ACM conference on Assistive technologies

October 1994

158 pages

ISBN:0897916492

DOI:10.1145/191028

Chairman:
Ephraim P. Glinert
Renssealaer Polytechnic Institute, Troy, NY

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

Publisher

Association for Computing Machinery

New York, NY, United States

Publication History

Published: 31 October 1994

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Conference

ASSETS94

Sponsor:

ASSETS94: First International ACM/SIGCAPH Conference on Assistive Technologies

October 31 - November 1, 1994

California, Marina Del Rey, USA

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Overall Acceptance Rate 436 of 1,556 submissions, 28%

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Paula dos Santos CGranville LLoewenstern DShwartz LAnerousis N(2019)A Mashup-Based Approach to Optimize Human Performance in IT Service ManagementHuman Performance Technology10.4018/978-1-5225-8356-1.ch083(1678-1714)Online publication date: 2019
https://doi.org/10.4018/978-1-5225-8356-1.ch083
Kacorri H(2017)Teachable machines for accessibilityACM SIGACCESS Accessibility and Computing10.1145/3167902.3167904(10-18)Online publication date: 27-Nov-2017
https://dl.acm.org/doi/10.1145/3167902.3167904
Paula dos Santos CGranville LLoewenstern DShwartz LAnerousis N(2015)A Mashup-Based Approach to Optimize Human Performance in IT Service ManagementMaximizing Management Performance and Quality with Service Analytics10.4018/978-1-4666-8496-6.ch011(300-336)Online publication date: 2015
https://doi.org/10.4018/978-1-4666-8496-6.ch011
Albers M(2012)How People Approach Technology-Based InteractionsHuman-Information Interaction and Technical Communication10.4018/978-1-4666-0152-9.ch005(170-216)Online publication date: 2012
https://doi.org/10.4018/978-1-4666-0152-9.ch005
Holleis PScherr MBroll G(2011)A revised mobile KLM for interaction with multiple NFC-tagsProceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part IV10.5555/2042283.2042306(204-221)Online publication date: 5-Sep-2011
https://dl.acm.org/doi/10.5555/2042283.2042306
Wilson M(2011)Search User Interface DesignSynthesis Lectures on Information Concepts, Retrieval, and Services10.2200/S00371ED1V01Y201111ICR0203:3(1-143)Online publication date: 15-Nov-2011
https://doi.org/10.2200/S00371ED1V01Y201111ICR020
Holleis PScherr MBroll G(2011)A Revised Mobile KLM for Interaction with Multiple NFC-TagsHuman-Computer Interaction – INTERACT 201110.1007/978-3-642-23768-3_18(204-221)Online publication date: 2011
https://doi.org/10.1007/978-3-642-23768-3_18
Zhu SFeng JSears A(2010)Investigating Grid-Based NavigationACM Transactions on Accessible Computing10.1145/1838562.18385653:1(1-30)Online publication date: 1-Sep-2010
https://dl.acm.org/doi/10.1145/1838562.1838565
Holleis PSchmidt A(2009)MakeItProceedings of the 6th International Conference on Pervasive Computing10.1007/978-3-540-79576-6_4(56-74)Online publication date: 16-Mar-2009
https://dl.acm.org/doi/10.1007/978-3-540-79576-6_4
Holleis POtto FHussmann HSchmidt ARosson MGilmore D(2007)Keystroke-level model for advanced mobile phone interactionProceedings of the SIGCHI Conference on Human Factors in Computing Systems10.1145/1240624.1240851(1505-1514)Online publication date: 29-Apr-2007
https://dl.acm.org/doi/10.1145/1240624.1240851
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