Paper Info
Title
Psychometric evaluation of an after-scenario questionnaire for computer usability studies: the ASQ
Abstract
A three-item after-scenario questionnaire was used in three related usability tests in different areas of the United States. The studies had eight scenarios in common. After participants finished a scenario, they completed the After-Scenario Questionnaire (the ASQ). A factor analysis of the responses to the ASQ items revealed that an eight-factor solution explained 94 percent of the variability of the 24 (eight scenarios by three items per scenario) items. The varimax-rotated factor pattern showed that these eight factors were clearly associated with the eight scenarios. The benefit of this research to system designers is that this three-item questionnaire has acceptable psychometric properties of reliability, sensitivity, and concurrent validity, and may be used with confidence in other, similar usability studies.
Year
DOI
Venue
1991
10.1145/122672.122692
ACM SIGCHI Bulletin
Keywords
DocType
Volume
psychometric evaluation,united states,asq item,similar usability study,computer usability study,three-item after-scenario questionnaire,after-scenario questionnaire,factor analysis,varimax-rotated factor pattern,related usability test,acceptable psychometric property,three-item questionnaire,system design,usability testing
Journal
23
Issue
Citations 
PageRank 
1
57
18.92
References 
Authors
2
1
Name
Order
Citations
PageRank
James R. Lewis11109119.18