The effects of cognitive load on query reformulation: mental demand, temporal demand and frustration
| Autor: | Kyoungsik Na |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
NASA-TLX
Web search query Computer science Information seeking 05 social sciences 02 engineering and technology Library and Information Sciences Task (project management) Empirical research 020204 information systems 0202 electrical engineering electronic engineering information engineering Information system 0509 other social sciences User interface 050904 information & library sciences Cognitive load Information Systems Cognitive psychology |
| Zdroj: | Aslib Journal of Information Management. 73:436-453 |
| ISSN: | 2050-3806 |
| DOI: | 10.1108/ajim-07-2020-0206 |
| Popis: | PurposeThis study explores the effects of cognitive load on the propensity to reformulate queries during information seeking on the web.Design/methodology/approachThis study employs an experimental design to analyze the effect of manipulations of cognitive load on the propensity for query reformulation between experimental and control groups. In total, three affective components that contribute to cognitive load were manipulated: mental demand, temporal demand and frustration.FindingsA significant difference in the propensity of query reformulation behavior was found between searchers exposed to cognitive load manipulations and searchers who were not exposed. Those exposed to cognitive load manipulations made half as many search query reformulations as searchers not exposed. Furthermore, the National Aeronautical and Space Administration Task Load Index (NASA-TLX) cognitive load scores of searchers who were exposed to the three cognitive load manipulations were higher than those of searchers who were not exposed indicating that the manipulation was effective. Query reformulation behavior did not differ across task types.Originality/valueThe findings suggest that a dual-task method and NASA-TLX assessment serve as good indicators of cognitive load. Because the findings show that cognitive load hinders a searcher's interaction with information search tools, this study provides empirical support for reducing cognitive load when designing information systems or user interfaces. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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