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Related Concept Videos

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Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
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Updated: Mar 1, 2026

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Does the Screening Status of Message Characters Affect Message Effects?

Julia M Alber1, Karen Glanz1

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Health Education & Behavior : the Official Publication of the Society for Public Health Education
|May 27, 2017
PubMed
Summary
This summary is machine-generated.

Public health messages about colorectal cancer screening awareness are crucial. However, a pictured individual's screening status did not significantly impact message effectiveness or screening intention in this study.

Keywords:
cancer screeningscolorectal cancerhealth communicationhealth messagespublic health

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Area of Science:

  • Public Health
  • Health Communication
  • Behavioral Science

Background:

  • Public health messages are vital for increasing awareness of colorectal cancer (CRC) screenings.
  • Visual elements in health messages, such as pictured individuals, are common.
  • The impact of depicting an individual's engagement in the health behavior of interest on message outcomes is not well understood.

Purpose of the Study:

  • To investigate how a pictured individual's screening status influences the effectiveness of public health messages about colorectal cancer screening.
  • To examine the effects of different information levels regarding the pictured individual's screening status on message credibility, effectiveness, and screening intention.

Main Methods:

  • A sample of 360 participants aged 50-75 completed an online survey.
  • Participants were randomly assigned to view one of four colorectal cancer screening messages featuring a pictured individual with varying screening status information.
  • Message credibility, effectiveness, and screening intention were measured.

Main Results:

  • No significant differences were found in message credibility, message effectiveness, or screening intention across the four conditions.
  • Participants rated the pictured individual's knowledge significantly lower when their screening status was unknown compared to when no information was provided.

Conclusions:

  • The screening status of a pictured individual in public health messages may not significantly influence message effectiveness or the intention to screen for colorectal cancer.
  • Further research should explore the long-term effects of image choices in health communication and their impact on screening behaviors.