Document Detail

Analyzing performance with computer access technology using unconstrained text entry protocol.
MedLine Citation:
PMID:  20157863     Owner:  NLM     Status:  MEDLINE    
Recent work in human-computer interaction has demonstrated the use of unconstrained text entry protocols, which provide a more natural environment for research participants. We demonstrate the application of this approach to the analysis of word completion. Eleven participants (five nondisabled and six with disabilities) were recruited and asked to transcribe sentences using an on-screen keyboard both with and without word completion while time-stamped keystroke data were collected. The subsequent analysis demonstrates how the entire input stream (including erroneous keystrokes and the keystrokes used to correct errors) can be included in evaluation of performance with a text entry device or keystroke reduction method. Three new measures of keystroke savings are introduced, and the application of these measures is demonstrated.
Jennifer M Smith; Richard C Simpson
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of rehabilitation research and development     Volume:  46     ISSN:  1938-1352     ISO Abbreviation:  J Rehabil Res Dev     Publication Date:  2009  
Date Detail:
Created Date:  2010-02-16     Completed Date:  2010-06-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8410047     Medline TA:  J Rehabil Res Dev     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1059-68     Citation Subset:  IM    
Department of Rehabilitation Sciences and Technology, University of Pittsburgh, Pittsburgh, PA 15260, USA.
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MeSH Terms
Communication Aids for Disabled*
Middle Aged
Motor Skills
User-Computer Interface*
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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