{ "153006-21914908": { "datetime_modified":"20260928T155439", "datetime_start":"20261007T120000", "datetime_end":"20261007T130000", "has_end_time":1, "date_start":"2026-10-07", "date_end":"2026-10-07", "time_start":"12:00:00", "time_end":"13:00:00", "time_zone":"America\/Detroit", "event_title":"MPSDS \/ JPSM Seminar Series - Partisan Nonresponse All the Way Down", "occurrence_title":"", "combined_title":"MPSDS \/ JPSM Seminar Series - Partisan Nonresponse All the Way Down: Marc Trussler - Director of Data Science at the University of Pennsylvania\u2019s Program on Opinion Research and Election Studies and a Senior Elections Analyst on the NBC News Decision Desk.", "event_subtitle":"Marc Trussler - Director of Data Science at the University of Pennsylvania\u2019s Program on Opinion Research and Election Studies and a Senior Elections Analyst on the NBC News Decision Desk.", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"MPSDS \/ JPSM Seminar Series\nMPSDS M3 Series: Mastery, Methodology, Meetups.\n\nOctober 7, 2026\n12:00 - 1:00 pm ET\nInstitute for Social Research, Room 1070, and via Zoom.\n\nPartisan Nonresponse All the Way Down\nSurvey weighting and quota sampling assume that the respondents in a demographic cell represent the non-respondents in that cell. Using roughly two million online survey responses across three election cycles together with a same-time, five-firm survey experiment fielded in Spring 2024, we show this assumption does not hold: partisan non-response operates *within* demographic cells and below them. As a result, demographic weighting cannot remove it; only weighting on partisanship collapses topline variance to sampling error, and even that leaves critical subgroup estimates biased.\n\nMarc Trussler is the Director of Data Science at the University of Pennsylvania\u2019s Program on Opinion Research and Election Studies and a Senior Elections Analyst on the NBC News Decision Desk. He received his PhD from Vanderbilt University in 2019, and has published work on polling methodology, political behavior, and the media.", "occurrence_notes":"Onsite at the Institute for Social Research, room 1070, and via Zoom.", "guid":"153006-21914908@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/153006", "building_id":"1000145", "building_name":"Institute For Social Research", "campus_maps_id":"76", "room":"1070", "location_name":"Institute For Social Research", "has_livestream":1, "livestream_type":"zoom", "livetream_require_login":0, "livestream_id":"95807268556", "livestream_password":"2026", "livestream_link":"https:\/\/umich.zoom.us\/j\/95807268556", "cost":"", "tags":["Basic Science","brown bag","Data","Data Analysis","Data Collection","Data Curation","Data Linkage","Data Management","Data Science","Decision Making","Elections","Free","Health Data","Institute For Social Research","Metadata","Political Science","Politics","Research","Statistics","Survey Methodology","Survey Methods","Survey Research","Talk"], "website":"https:\/\/calendar.google.com\/calendar\/event?action=TEMPLATE&tmeid=azl1ZDg1cjZvdHVxNGVrZG44cmpwc3QxdDQgY19hMGE0OWUxNTZlYTE3MDc5OWRjZTZhYjYwM2VjYzM2ODIwNzQ2YTczN2M1OGM0MjllODcyYWVlOWVlNDAxZTI5QGc&tmsrc=c_a0a49e156ea170799dce6ab603ecc36820746a737c58c429e872aee9ee401e29%40group.calendar.google.com", "sponsors":[ { "group_name":"Michigan Program in Survey and Data Science", "group_id":"4430", "website":"" }, { "group_name":"Institute for Social Research", "group_id":"3285", "website":"http:\/\/isr.umich.edu" }, { "group_name":"Survey Research Center", "group_id":"5063", "website":"https:\/\/src.isr.umich.edu\/" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/09\/event_153006_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/09\/event_153006_original-1.jpg" }, "occurrence_count":1, "first_occurrence":21914908 } , "153165-21915217": { "datetime_modified":"20261001T152518", "datetime_start":"20261007T120000", "datetime_end":"20261007T235900", "has_end_time":1, "date_start":"2026-10-07", "date_end":"2026-10-07", "time_start":"12:00:00", "time_end":"23:59:00", "time_zone":"America\/Detroit", "event_title":"SMART CENTER Symposium", "occurrence_title":"", "combined_title":"SMART CENTER Symposium", "event_subtitle":"", "event_type":"Conference \/ Symposium", "event_type_id":"5", "description":"November 10 - 11, 2026\n\nConnect with pioneers and shape the future of single-molecule biology together. The SMBio Single-molecule\nBiology Symposium brings together scientists interested in single-molecule approaches from all over the world to\nshare their research, connect, and exchange ideas and experiences.\n\nJoin us at Kahn Auditorium in the Taubman Biomedical Science Research Building (109 Zina Pitcher Place).\nPlease see https:\/\/www.lumicks.com\/event\/symposium\/smbio-2026-midwest# for the agenda.", "occurrence_notes":null, "guid":"153165-21915217@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/153165", "building_id":"", "building_name":"", "campus_maps_id":"", "room":"", "location_name":null, "has_livestream":0, "cost":"This Symposium requires a registration fee to help make it a fantastic event for everyone. To accommodate a broad variety of people, the pricing model is as follows: PhD student or Postdoc: $75 PI or Industry: $200 The fee allows us to sustainably organize a recurring, high-quality meeting for the single-molecule community and covers breakfast, lunch and costs for the social networking evening for both days. After your registration is confirmed, we will be in touch to provide you with instructions on payment options.", "tags":["Biology","Molecular","Research","Symposium"], "website":"https:\/\/www.lumicks.com\/event\/symposium\/smbio-2026-midwest#", "sponsors":[ { "group_name":"LSA Biophysics", "group_id":"3767", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/10\/event_153165_original-1.jpg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/10\/event_153165_original-1.jpg" }, "occurrence_count":42, "first_occurrence":21915211 } }