{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/130120"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/130120","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Two heads are better than one: Investigating the benefits of interaction in collaborative decision making","abstract":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01","abstract_html":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01","abstract_has_math":false,"creators":["Unal, Belgin"],"institution":"University of Illinois Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":["Benjamin, Aaron S.","Benjamin, Aaron S","Sahakyan, Lili","Dell, Gary","Zhang, Bo","Gupta, Pranav"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-05-30","date_published":"2025-05-30","updated_at":"2026-07-22T22:25:06Z","subjects":["Metacognition","Group Decision Making","Interaction","Collaborative Cognition"],"languages":["en","eng"],"rights":["Copyright 2025 Belgin Ünal"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/130120","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Benjamin, Aaron S.","Benjamin, Aaron S","Sahakyan, Lili","Dell, Gary","Zhang, Bo","Gupta, Pranav"]},{"key":"dc:creator","label":"Author","values":["Unal, Belgin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-05-30","2025-08"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Psychology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Metacognition","Group Decision Making","Interaction","Collaborative Cognition"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2025 Belgin Ünal"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/130120"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01","The student, Belgin Unal, accepted the attached license on 2025-05-29 at 13:08.","The student, Belgin Unal, submitted this Dissertation for approval on 2025-05-29 at 14:11.","This Dissertation was approved for publication on 2025-05-30 at 09:51.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22314 on 2025-10-25 at 15:52:30","Groups often outperform individuals in cognitive tasks. However, there is little consensus on the cognitive mechanisms that underlie effective teamwork. The present investigation examines whether the process of group interaction plays a critical role in enhancing collective performance. In the first three experiments, participants answered general knowledge questions either in pairs that were allowed to discuss and collaborate, or individually. Individual responses were used to construct nominal groups using a range of established aggregation policies. In all cases, interacting groups consistently outperformed all nominal group variants, suggesting that the advantages of group cognition stem not only from the increased knowledge pool, but from the interactive process itself. A fourth experiment extended this approach to the domain of misinformation detection—an area of pressing real-world concern—revealing a more complex pattern and pointing to potential limits in the generalizability of interaction benefits across task domains. These findings demonstrate the importance of fostering interaction in collaborative settings, where shared reasoning and metacognitive exchange can significantly improve collective decision-making."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Two heads are better than one: Investigating the benefits of interaction in collaborative decision making"]}]}],"canonical_facts":{"dc:contributor":["Benjamin, Aaron S.","Benjamin, Aaron S","Sahakyan, Lili","Dell, Gary","Zhang, Bo","Gupta, Pranav"],"dc:creator":["Unal, Belgin"],"dc:date":["2025-05-30","2025-08"],"dc:description":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01","The student, Belgin Unal, accepted the attached license on 2025-05-29 at 13:08.","The student, Belgin Unal, submitted this Dissertation for approval on 2025-05-29 at 14:11.","This Dissertation was approved for publication on 2025-05-30 at 09:51.","DSpace SAF Submission Ingestion Package generated from Vireo submission #22314 on 2025-10-25 at 15:52:30","Groups often outperform individuals in cognitive tasks. However, there is little consensus on the cognitive mechanisms that underlie effective teamwork. The present investigation examines whether the process of group interaction plays a critical role in enhancing collective performance. In the first three experiments, participants answered general knowledge questions either in pairs that were allowed to discuss and collaborate, or individually. Individual responses were used to construct nominal groups using a range of established aggregation policies. In all cases, interacting groups consistently outperformed all nominal group variants, suggesting that the advantages of group cognition stem not only from the increased knowledge pool, but from the interactive process itself. A fourth experiment extended this approach to the domain of misinformation detection—an area of pressing real-world concern—revealing a more complex pattern and pointing to potential limits in the generalizability of interaction benefits across task domains. These findings demonstrate the importance of fostering interaction in collaborative settings, where shared reasoning and metacognitive exchange can significantly improve collective decision-making."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/130120"],"dc:language":["en","eng"],"dc:rights":["Copyright 2025 Belgin Ünal"],"dc:subject":["Metacognition","Group Decision Making","Interaction","Collaborative Cognition"],"dc:title":["Two heads are better than one: Investigating the benefits of interaction in collaborative decision making"],"dc:type":["text"],"thesis:degree_discipline":["Psychology"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:06Z"}