Abstract
Systematic errors in routine procedural tasks present an important problem for psychologists who study interactions between humans and technological systems. This paper details an experiment designed to examine systematic error patterns and evaluate error predictions made by a notable psychological theory and industry-standard usability tools when performing multiple routine procedural tasks on a single highly visual interface. Participants completed three dynamic, computer-based routine procedural tasks involving execution of multiple steps. Differences were found in error frequencies at particular steps between the three tasks, a result that is consistent with predictions derived from Altmann and Trafton's (2002) activation-based model of memory for goals, but contrary to those of usability guidelines. Error patterns were reminiscent of several familiar types of systematic error.
Get full access to this article
View all access options for this article.
