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Unpacking Drivers of Public Health and Science Politicization: Dimensions of News Messages and Cognitive Pathways of Influence
Unpacking Drivers of Public Health and Science Politicization: Dimensions of News Messages...
Unpacking Drivers of Public Health and Science Politicization: Dimensions of News Messages and Cognitive Pathways of Influence

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105258
ISBN  
9798263322281
DDC  
614
저자명  
Gansen, Chloe.
서명/저자  
Unpacking Drivers of Public Health and Science Politicization: Dimensions of News Messages and Cognitive Pathways of Influence
발행사항  
[Sl] : University of Minnesota, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
342 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Nagler, Rebekah.
학위논문주기  
Thesis (Ph.D.)--University of Minnesota, 2025.
초록/해제  
요약Although the political underpinnings of public health and science are well recognized, these domains are increasingly politicized, with public-facing messaging often strategically framed to highlight controversy and political connotations. Beyond serving short-term political interests, such messaging can undermine public health and scientific agendas, contributing to adverse societal outcomes including diminished trust in public institutions and experts. Prior empirical investigations indicate that exposure to politicization in the public sphere elicits negative emotions, confusion regarding health and science information, and reduced support for policies aimed at promoting public well-being. Despite the significance of its consequences, empirical understanding of how politicization unfolds and affects public responses remains limited, in part due to conceptual ambiguity and insufficient attention to the psychological processes triggered by encounters with politicizing messages.This dissertation addresses these gaps by separately examining the effects of two dimensions of politicization-conflict/controversy (operationalized as news messages that feature controversy) and political discourse/cues (operationalized as news messages that feature political context)-on affective, cognitive, and policy support outcomes, and by evaluating two mediating variables-perceived controversy and perceived political connection-as potential psychological antecedents in the causal pathway. Two studies employed an identical cross-sectional experimental design testing a parallel mediation model in which exposure to politicizing messages shapes perceptions of controversy and political connection, which in turn influence emotional, cognitive, and policy support responses. Study 1 (N = 580) examined these dynamics in the context of gas stove safety, while Study 2 (N = 1,078) provided a conceptual replication using the contexts of per- and polyfluoroalkyl substances (PFAS) and mammography screening. In each study, participants were randomly assigned to read a news message featuring one, both, or neither dimension of politicization, with posttests assessing the proposed mediators and key outcomes.Results indicated that messages emphasizing controversy reliably increased perceived controversy, whereas messages emphasizing political context primarily enhanced perceptions that political actors discuss the featured topic. Stronger perceptions of controversy and political actor discussion were generally associated with heightened negative emotions and cognitive responses, whereas greater perceptions of the topic's public relevance-unaffected by message manipulations-were linked to reduced confusion and backlash and greater support for policy measures. Indirect associations, estimated via a measurement-of-mediation approach, suggested that perceived controversy and perceived political actor discussion may mediate the effects of politicizing messages. Adverse outcomes were generally more pronounced in response to messages featuring controversy than to those emphasizing political context. While many associations and patterns of effects replicated across topics, some exhibited topic-specific variation. Overall, findings advance conceptual clarity for the study of health and science politicization, identify perceptions of controversy and political actor discussion as potential psychological antecedents through which effects of politicizing messages operate, and may inform future public health and communication interventions designed to counteract the negative consequences of politicization in the public sphere.
일반주제명  
Public health
일반주제명  
Political science
일반주제명  
Communication
일반주제명  
Film studies
키워드  
Health communication
키워드  
Media effects
키워드  
Political communication
키워드  
Politicization
키워드  
Science communication
키워드  
Social psychology
기타저자  
University of Minnesota Mass Communication
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aGansen,  Chloe.
■24510▼aUnpacking  Drivers  of  Public  Health  and  Science  Politicization:  Dimensions  of  News  Messages  and  Cognitive  Pathways  of  Influence
■260    ▼a[Sl]▼bUniversity  of  Minnesota▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a342  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Nagler,  Rebekah.
■5021  ▼aThesis  (Ph.D.)--University  of  Minnesota,  2025.
■520    ▼aAlthough  the  political  underpinnings  of  public  health  and  science  are  well  recognized,  these  domains  are  increasingly  politicized,  with  public-facing  messaging  often  strategically  framed  to  highlight  controversy  and  political  connotations.  Beyond  serving  short-term  political  interests,  such  messaging  can  undermine  public  health  and  scientific  agendas,  contributing  to  adverse  societal  outcomes  including  diminished  trust  in  public  institutions  and  experts.  Prior  empirical  investigations  indicate  that  exposure  to  politicization  in  the  public  sphere  elicits  negative  emotions,  confusion  regarding  health  and  science  information,  and  reduced  support  for  policies  aimed  at  promoting  public  well-being.  Despite  the  significance  of  its  consequences,  empirical  understanding  of  how  politicization  unfolds  and  affects  public  responses  remains  limited,  in  part  due  to  conceptual  ambiguity  and  insufficient  attention  to  the  psychological  processes  triggered  by  encounters  with  politicizing  messages.This  dissertation  addresses  these  gaps  by  separately  examining  the  effects  of  two  dimensions  of  politicization-conflict/controversy  (operationalized  as  news  messages  that  feature  controversy)  and  political  discourse/cues  (operationalized  as  news  messages  that  feature  political  context)-on  affective,  cognitive,  and  policy  support  outcomes,  and  by  evaluating  two  mediating  variables-perceived  controversy  and  perceived  political  connection-as  potential  psychological  antecedents  in  the  causal  pathway.  Two  studies  employed  an  identical  cross-sectional  experimental  design  testing  a  parallel  mediation  model  in  which  exposure  to  politicizing  messages  shapes  perceptions  of  controversy  and  political  connection,  which  in  turn  influence  emotional,  cognitive,  and  policy  support  responses.  Study  1  (N  =  580)  examined  these  dynamics  in  the  context  of  gas  stove  safety,  while  Study  2  (N  =  1,078)  provided  a  conceptual  replication  using  the  contexts  of  per-  and  polyfluoroalkyl  substances  (PFAS)  and  mammography  screening.  In  each  study,  participants  were  randomly  assigned  to  read  a  news  message  featuring  one,  both,  or  neither  dimension  of  politicization,  with  posttests  assessing  the  proposed  mediators  and  key  outcomes.Results  indicated  that  messages  emphasizing  controversy  reliably  increased  perceived  controversy,  whereas  messages  emphasizing  political  context  primarily  enhanced  perceptions  that  political  actors  discuss  the  featured  topic.  Stronger  perceptions  of  controversy  and  political  actor  discussion  were  generally  associated  with  heightened  negative  emotions  and  cognitive  responses,  whereas  greater  perceptions  of  the  topic's  public  relevance-unaffected  by  message  manipulations-were  linked  to  reduced  confusion  and  backlash  and  greater  support  for  policy  measures.  Indirect  associations,  estimated  via  a  measurement-of-mediation  approach,  suggested  that  perceived  controversy  and  perceived  political  actor  discussion  may  mediate  the  effects  of  politicizing  messages.  Adverse  outcomes  were  generally  more  pronounced  in  response  to  messages  featuring  controversy  than  to  those  emphasizing  political  context.  While  many  associations  and  patterns  of  effects  replicated  across  topics,  some  exhibited  topic-specific  variation.  Overall,  findings  advance  conceptual  clarity  for  the  study  of  health  and  science  politicization,  identify  perceptions  of  controversy  and  political  actor  discussion  as  potential  psychological  antecedents  through  which  effects  of  politicizing  messages  operate,  and  may  inform  future  public  health  and  communication  interventions  designed  to  counteract  the  negative  consequences  of  politicization  in  the  public  sphere.
■590    ▼aSchool  code:  0130.
■650  4▼aPublic  health
■650  4▼aPolitical  science
■650  4▼aCommunication
■650  4▼aFilm  studies
■653    ▼aHealth  communication
■653    ▼aMedia  effects
■653    ▼aPolitical  communication
■653    ▼aPoliticization
■653    ▼aScience  communication
■653    ▼aSocial  psychology
■690    ▼a0573
■690    ▼a0615
■690    ▼a0459
■690    ▼a0900
■71020▼aUniversity  of  Minnesota▼bMass  Communication.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0130
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360064▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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