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Following online research that examined delays with various motivations, we created two in-person studies in which participants\u2019 tasks were impacted by the robot\u2019s other tasks. In the first, participants either requested a task for the robot to complete on their behalf or watched the robot performing tasks for other people. We measured how their opinions changed depending on whether their task\u2019s completion was delayed due to another participant\u2019s task or they were observing without a task of their own. In the second, participants had a robot walk them to an office and became delayed as the robot detoured to another location. We measured how opinions of the robot changed depending on who requested the detour task and the length of the detour. Overall, participants positively viewed task interleaving as long as the delay and inconvenience imposed by someone else\u2019s task were small and the task was well-justified. Also, observers often had lower opinions of the robot than participants who requested tasks, highlighting a concern for online research.<\/jats:p>","DOI":"10.1145\/3663486","type":"journal-article","created":{"date-parts":[[2024,5,23]],"date-time":"2024-05-23T13:33:42Z","timestamp":1716471222000},"page":"1-20","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Perceptions of a Robot That Interleaves Tasks for Multiple Users"],"prefix":"10.1145","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2735-148X","authenticated-orcid":false,"given":"Elizabeth J.","family":"Carter","sequence":"first","affiliation":[{"name":"Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1433-8665","authenticated-orcid":false,"given":"Peerat","family":"Vichivanives","sequence":"additional","affiliation":[{"name":"School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, USA"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-7338-5144","authenticated-orcid":false,"given":"Ruijia","family":"Xing","sequence":"additional","affiliation":[{"name":"School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5254-2846","authenticated-orcid":false,"given":"Laura M.","family":"Hiatt","sequence":"additional","affiliation":[{"name":"Navy Center for Applied Research in Artificial Intelligence, US Naval Research Laboratory, Washington, DC, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7583-4590","authenticated-orcid":false,"given":"Stephanie","family":"Rosenthal","sequence":"additional","affiliation":[{"name":"Computer Science Department, Carnegie Mellon University, Pittsburgh, PA, USA"}]}],"member":"320","published-online":{"date-parts":[[2024,10,16]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12369-008-0001-3"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-44953-1_34"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1145\/2909824.3020208"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1109\/HRI53351.2022.9889307"},{"key":"e_1_3_2_6_2","first-page":"86","volume-title":"Proceedings of the International Conference on Automated Planning and Scheduling","volume":"29","author":"Chakraborti Tathagata","year":"2019","unstructured":"Tathagata Chakraborti, Anagha Kulkarni, Sarath Sreedharan, David E. 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