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Health literacy is an individual's or a community's capacity to comprehend, receive, read, and use relevant healthcare information and services. The World Health Organization (WHO, 2018) defines health literacy as the cognitive and social skills that determine the ability of individuals to gain access to, understand, and use information in ways that promote and maintain good health. As a result, the WHO helps individuals manage long-term health concerns, participate in preventative...
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Health Information Technology (HIT)
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A Critical Health Literacy Podcast to Counter Health Misinformation at Scale: Randomized Controlled Trial.

Vanesa Mora Ringle1, Amanda Jensen-Doss2

  • 1Department of Education and Human Services, College of Education, Lehigh University, 111 Research Drive, Bethlehem, PA, 18015, United States, 1 610-758-3257.

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Summary

A story-based podcast improved parents' critical thinking about health information and their decision-making. This digital intervention offers a scalable strategy to combat health misinformation and enhance public health literacy.

Keywords:
EBPRCTcritical health literacydigital health interventionevidence-based practicehealth misinformationparentspublic health educationrandomized controlled trial

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Area of Science:

  • Public Health
  • Health Communication
  • Digital Health Interventions

Background:

  • Misinformation and low critical health literacy are significant global public health challenges.
  • There is an urgent need for scalable, evidence-informed digital interventions to improve health decision-making.

Purpose of the Study:

  • To develop and test a brief, story-based critical thinking podcast aimed at enhancing critical health literacy among US parents.
  • The podcast, "Parents Making Informed Health Choices," was designed using critical health literacy frameworks.

Main Methods:

  • A 2-phase study involving user testing of a prototype podcast and a 2-arm randomized controlled trial (N=250).
  • Participants were randomized to listen to either a critical thinking podcast or a control podcast.
  • Primary outcomes included critical thinking about health claims, intended health behaviors, attitudes toward evidence-based mental health practices, and treatment preferences.

Main Results:

  • Parents who listened to the critical thinking podcast showed significantly improved critical thinking about health information (P<.001).
  • The intervention group also reported stronger critical thinking-aligned intended behaviors (P=.001) and more evidence-informed treatment preferences (P=.038).
  • Effect sizes for the outcomes were small to moderate.

Conclusions:

  • A brief, story-based digital podcast can effectively enhance critical thinking regarding health information and influence health behaviors and attitudes.
  • Podcasts present a promising, cost-effective, and scalable method for improving critical health literacy and combating health misinformation.