{ "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":"" } ], "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 } , "153051-21914985": { "datetime_modified":"20260929T133218", "datetime_start":"20261111T120000", "datetime_end":"20261111T130000", "has_end_time":1, "date_start":"2026-11-11", "date_end":"2026-11-11", "time_start":"12:00:00", "time_end":"13:00:00", "time_zone":"America\/Detroit", "event_title":"MPSDS \/ JPSM Seminar: Adding Modes without Subtracting Quality: Survey Data Collection in Low and Middle-income Countries", "occurrence_title":"", "combined_title":"MPSDS \/ JPSM Seminar: Adding Modes without Subtracting Quality: Survey Data Collection in Low and Middle-income Countries: Dr. Abigail (Abba) Greenleaf - Columbia University", "event_subtitle":"Dr. Abigail (Abba) Greenleaf - Columbia University", "event_type":"Lecture \/ Discussion", "event_type_id":"13", "description":"MPSDS JPSM Seminar Series\nMPSDS M3 Series: Mastery, Methodology, Meetups\n\nIn person, room 1070, Institute for Social Research and via Zoom. \n\nAdding Modes without Subtracting Quality: Survey Data Collection in Low and Middle-income Countries\n\nThe growth of mobile phones and internet connection in low and middle-income countries (LMIC) may mean that survey data collection in LMIC can advance from face-to-face surveys to additional modes such as web or cell phone surveys. During this seminar, you will learn which modes are feasible in which contexts with a particular focus on mobile phone surveys.\n\nDr. Abigail (Abba) Greenleaf is a public health demographer whose research focuses on (1) women\u2019s reproductive health across geographies and the lifespan and; (2) intensive longitudinal data collection. By integrating these areas, she is creating innovative findings for international sexual and reproductive health population sciences. She enjoys leveraging innovative data collection approaches to generate high-frequency, cost- efficient population data for public health action.", "occurrence_notes":"In person in room 1070 ISR and via Zoom.", "guid":"153051-21914985@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/153051", "building_id":"null", "building_name":"Off Campus Location", "campus_maps_id":"1", "room":"1070 Institute for Social Research (ISR)", "location_name":"Virtual", "has_livestream":1, "livestream_type":"zoom", "livetream_require_login":0, "livestream_id":"99551151693", "livestream_password":"2026", "livestream_link":"https:\/\/umich.zoom.us\/j\/99551151693", "cost":"", "tags":["Biomedical","biomedical research","brown bag","Data","Data Analysis","Data Collection","Data Curation","Data Linkage","Data Management","Data Science","Free","Health","In Person","Isr","Livestream","Public Health","Research","seminar","Survey Methodology","Survey Methods","Survey Research"], "website":"https:\/\/shorturl.at\/bJtX3", "sponsors":[ { "group_name":"Michigan Program in Survey and Data Science", "group_id":"4430", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2026\/09\/event_153051_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2026\/09\/event_153051_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2026\/09\/event_153051_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2026\/09\/event_153051_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2026\/09\/event_153051_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2026\/09\/event_153051_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2026\/09\/event_153051_original-1.png" }, "occurrence_count":1, "first_occurrence":21914985 } }