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Effects of Prior Exposure to Conflicting Health Information on Responses to Subsequent Unrelated Health Messages

2020년 11월 9일 업데이트: University of Minnesota
Many population-level public health strategies-including media campaigns and other behavioral interventions, screening recommendations, and vaccination policies-rely on messaging to promote cancer prevention and control. These strategies do not take place in a vacuum; rather, they occur in the context of a broader public information environment, which is increasingly characterized by conflicting and often controversial health information. Although studies have documented that such information is prevalent, a critical question remains unanswered: does exposure to conflicting health information in people's routine interactions with the broader information environment threaten the success of message-based population-level public health strategies? And, if so, who is most susceptible to the effects of such exposure? This study will provide a rigorous empirical test of these critical answered questions, guided by two specific aims: First, to evaluate whether prior exposure to conflicting health information influences responses to subsequent unrelated and uncontested health messages, a phenomenon that has been described as "carryover effects" (Primary Aim); and second, to identify whether there are individual-level differences in how conflict affects responses to these unrelated and uncontested health messages (Secondary Aim).

연구 개요

상태

완전한

정황

개입 / 치료

상세 설명

To accomplish these aims, an online survey-based experiment using a population-based sample of U.S. adults (anticipated N=1,800) will be conducted. At 2 time points across a 28-day period, participants will be exposed to news stories and social media posts about 6 health topics: mammography screening, prostate-specific antigen (PSA) testing, Vitamin D supplementation, carbohydrate consumption, alcohol consumption, and breastfeeding. Participants will be randomized to 1 of 2 treatment groups that differ only in the amount of conflict presented in these news and social media posts (conflict, no conflict). At a third time point, after the exposure to conflict period, all participants will be exposed to 3 (out of a possible 9) messages from existing health campaigns about 3 behaviors for which there is scientific consensus: fruit and vegetable consumption, colorectal cancer screening, and physical activity. To assess carryover effects (Primary Aim), participants' receptivity to these messages-as measured through several affective and cognitive responses (e.g., confidence in the evidence presented)-will be measured. Message receptivity is expected to be lower among those who were randomized to receive conflicting health information. Individual-level differences in message receptivity are possible; thus exploratory analyses (Secondary Aim) will be conducted to assess whether carryover effects of exposure to conflict may be more pronounced among certain groups (e.g., those with greater trust in media sources, those of lower socioeconomic position).

연구 유형

중재적

등록 (실제)

6046

단계

  • 해당 없음

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 장소

  • 미국
    • Illinois
      • Chicago, Illinois, 미국, 60603
        • NORC at the University of Chicago (online only)

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 이상 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

예

연구 대상 성별

모두

설명

Inclusion Criteria:

  • 18+ U.S. adults
  • Members of NORC's AmeriSpeak Panel (https://amerispeak.norc.org/Pages/default.aspx)
  • Able to complete web-based survey
  • Able to read in English

Exclusion Criteria:

  • None

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 다른
  • 할당: 무작위
  • 중재 모델: 병렬 할당
  • 마스킹: 더블

무기와 개입

참가자 그룹 / 팔
개입 / 치료
위약 비교기: No exposure to conflict
다른: No exposure to conflicting health information
At 2 time points across a ~28-day period, participants will be exposed to news stories and social media posts about 6 health topics: mammography screening, prostate-specific antigen (PSA) testing, Vitamin D supplementation, carbohydrate consumption, alcohol consumption, and breastfeeding. Participants in the no conflict (comparator) group will have no conflicting information included in these news and social media posts.
실험적: Exposure to conflict
다른: Exposure to conflicting health information
At 2 time points across a ~28-day period, participants will be exposed to news stories and social media posts about 6 health topics: mammography screening, prostate-specific antigen (PSA) testing, Vitamin D supplementation, carbohydrate consumption, alcohol consumption, and breastfeeding. Participants in the conflict (experimental) group will have conflicting information added to these news and social media posts.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Negative affective responses
기간: Up to 42 days
  • Participants are asked to indicate how "the ad you just saw made you feel"
  • 7 affective responses are randomly ordered: interested, frustrated, surprised, annoyed, distressed, optimistic, worried (response options: 1 "very slightly or not at all" to 5 "extremely")
Up to 42 days
Counterarguing
기간: Up to 42 days

• Participants are asked to indicate the extent to which they agree or disagree with 4 statements (randomly ordered; response options: 1 "strongly disagree" to 5 "strongly agree"):

  • "I found myself agreeing with the ad" (reverse coded)
  • "I thought of points that went against what the ad was saying"
  • "I accepted the ad's claims" (reverse coded)
  • "While reading the ad, I was skeptical of its claims"
Up to 42 days
Reactance/threat to freedom
기간: Up to 42 days
• Participants are asked to indicate the extent to which they agree or disagree with the following statement (response options: 1 "strongly disagree" to 5 "strongly agree"): "I felt like the ad was trying to manipulate me"
Up to 42 days
Other negative cognitive responses to ad claims
기간: Up to 42 days
• Participants are asked to indicate whether "the claims in the ad I just saw are" (randomly ordered; response options: 1 "strongly disagree" to 5 "strongly agree"): exaggerated, flawed, believable (reverse coded), reasonable (reverse coded)
Up to 42 days
Perceived argument strength
기간: Up to 42 days

• Participants are asked to indicate the extent to which they agree or disagree with 2 statements (randomly ordered; response options: 1 "strongly disagree" to 5 "strongly agree"):

  • "The ad was convincing"
  • "The ad gave me a strong reason to [engage in the behavior specified in the ad]"
Up to 42 days
Response efficacy
기간: Up to 42 days

• Participants are asked to respond to two items, presented in random order:

  • "How confident are you that there is evidence to support the ad's claims?" (1 "not confident at all" to 7 "extremely confident")
  • "How much do you think your health would benefit if you [engaged in the behavior specified in the ad]?" (1 "not at all" to 7 "extremely")
Up to 42 days

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

University of Minnesota

협력자

National Cancer Institute (NCI)

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2020년 7월 20일

기본 완료 (실제)

2020년 8월 31일

연구 완료 (실제)

2020년 8월 31일

연구 등록 날짜

최초 제출

2020년 1월 16일

QC 기준을 충족하는 최초 제출

2020년 1월 27일

처음 게시됨 (실제)

2020년 1월 30일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2020년 11월 10일

QC 기준을 충족하는 마지막 업데이트 제출

2020년 11월 9일

마지막으로 확인됨

2020년 11월 1일

추가 정보

이 연구와 관련된 용어

기타 연구 ID 번호

  • 2019NTLS140
  • R21CA218054 (미국 NIH 보조금/계약)

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

미정

IPD 계획 설명

Within one year of study completion, the final, cleaned, de-identified study dataset may be made available to third-party users under a data-sharing agreement that provides for: 1) a commitment to using the data only for research purposes; 2) a commitment to securing the data using appropriate information technology; and 3) a commitment to destroying or returning the data after analyses are completed. Requests for data sharing will be considered by the investigator team via in-person meetings and approved by consensus; meeting minutes will be taken to ensure transparent decision making and conflict of interest avoidance.

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

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