• Publications
  • Influence
Criteria For Evaluating Usability Evaluation Methods
TLDR
The current variety of alternative approaches to usability evaluation methods (UEMs) designed to assess and improve usability in software systems is offset by a general lack of understanding of the capabilities and limitations of each. Expand
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  • PDF
Criteria For Evaluating Usability Evaluation Methods
TLDR
The current variety of alternative approaches to usability evaluation methods (UEMs) designed to assess and improve usability in software systems is offset by a general lack of understanding of the capabilities and limitations of each. Expand
  • 283
  • 18
  • PDF
Assaying and Isolating Individual Differences in Searching a Hierarchical File System
Individual differences among users of a hierarchical file system were investigated. Results indicate that psychometric tests of vocabulary and spatial visualization are the best predictors of taskExpand
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Accommodating Individual Differences in Searching a Hierarchical File System
TLDR
We compared the performance of users with high and low spatial abilities on the old verbal interface and the new graphical interface on a hierarchical file system. Expand
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Empirical Models Based on Free-Modulus Magnitude Estimation of Perceived Presence in Virtual Environments
TLDR
A series of 3 studies was conducted to test free-modulus magnitude estimation as a measure of perceived presence in virtual environments (VEs) and to model the first-order effects of 11 VE system parameters on perceived presence across 5 subtasks. Expand
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Evaluating desktop video conferencing for distance learning
TLDR
A two-part study involving a controlled laboratory experiment and a field study evaluation was conducted on the suitability of DVC for distance learning. Expand
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Behavioral Measures of Aircrew Mental Workload
Behavioral research literature pertaining to the measurement of aircrew workload was classified into general categories of subjective opinion, spare mental capacity, and primary task metrics.Expand
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Within-session criterion changes compared to an ideal observer criterion in a visual monitoring task.
  • R. Williges
  • Psychology, Medicine
  • Journal of experimental psychology
  • 1 July 1969
  • 36
  • 2