Investigating the effects of computer mediated interruptions: An analysis of task characteristics and interruption frequency on financial performance

Article history: Received 1 August 2009 Accepted 15 September 2009 Financial and accounting tasks require high levels of concentration as well as cognitive capacity. Today, advanced technology can help facilitate the effective and efficient completion of such tasks. At the same time, however, these same technologies can interrupt work flow and create work-related stress, thus having a deleterious effect on task performance. These interruptions can be characterized across a number of different dimensions, including frequency, complexity, duration, and relevance to the primary task, to name a few. This study examines the effects of interruption frequency, task complexity, and individual characteristics on cognitive load and subsequent decisionmaking performance on financial tasks. As hypothesized, the results indicate the significant influence of interruption frequency and order of task complexity on cognitive load which influences performance. This research has implications on the design and use of information systems by accounting professionals in order to reduce potential negative effects. © 2009 Elsevier Inc. All rights reserved.