{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T00:41:21Z","timestamp":1761007281120,"version":"build-2065373602"},"reference-count":14,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2015,4,24]],"date-time":"2015-04-24T00:00:00Z","timestamp":1429833600000},"content-version":"vor","delay-in-days":478,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Proc of Assoc for Info"],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>We present preliminary results from a Web search study, where we paid particular attention to the design of complex tasks. We used subjective, behavioral, and cognitive measures to investigate the effects of task complexity and, separately, of search user interface elements. Our findings confirm the expected task properties by design \u2013 no differences between tasks at the same level of complexity, but significant differences between tasks at different levels of complexity on most dependent variables. The examined elements of user interface did not have a significant effect on experienced mental workload, however, they affected search behavior, but only on complex tasks.<\/jats:p><jats:p><jats:bold>Categories and Subject Descriptors<\/jats:bold><\/jats:p><jats:p>H3.3 Information Search and Retrieval: Search process.<\/jats:p>","DOI":"10.1002\/meet.2014.14505101078","type":"journal-article","created":{"date-parts":[[2015,4,24]],"date-time":"2015-04-24T17:19:02Z","timestamp":1429895942000},"page":"1-4","source":"Crossref","is-referenced-by-count":3,"title":["Effects of tasks at similar and different complexity levels"],"prefix":"10.1002","volume":"51","author":[{"given":"Yinglong","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Information University of Texas  Austin"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jacek","family":"Gwizdka","sequence":"additional","affiliation":[{"name":"School of Information University of Texas  Austin"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,4,24]]},"reference":[{"issue":"2","key":"e_1_2_7_2_1","first-page":"191","article-title":"Task complexity affects information seeking and use","volume":"31","author":"Bystr\u0151m K.","year":"1995","journal-title":"IP&M"},{"volume-title":"Discovering Statistics Using R","year":"2012","author":"Field A.","key":"e_1_2_7_3_1"},{"issue":"1","key":"e_1_2_7_4_1","first-page":"1","article-title":"Revisiting search task difficulty: Behavioral and individual difference measures","volume":"45","author":"Gwizdka J.","year":"2008","journal-title":"Proc. of ASIST"},{"issue":"4","key":"e_1_2_7_5_1","article-title":"What a Difference a Tag Cloud Makes: Effects of Tasks and Cognitive Abilities on Search Results Interface Use","volume":"14","author":"Gwizdka J.","year":"2009","journal-title":"Information Research"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/asi.21385"},{"key":"e_1_2_7_7_1","first-page":"1869","volume-title":"Proc. of CHI'2013 Ext Abstracts","author":"Gwizdka J.","year":"2013"},{"key":"e_1_2_7_8_1","unstructured":"Hart S. G. &Staveland L. E.(1988).Development of NASA\u2010TLX (Task Load Index): Results of Empirical and Theoretical Research. 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