Lesson 4: Communicating Risk: Who, How, When, Where and How Often

Topic 4: Best Practices

In this topic, we summarize expert’s best practices when developing risk communication messages or campaigns. We also discuss research that has examined stakeholder response to different types of messages. Do stakeholders respond more positively to risk communication messages that use quantification (numbers or categories of risk) or to messages that use metaphors and anecdotes? Finally, we list possible venues in which risk communication messages can be delivered, particularly when the message is controversial.

Objectives:

  • List the best practices to remember when developing a successful risk communication campaign
  • Discuss the usefulness of quantification or metaphors in risk communication
  • Provide a list of venues where risk communication can occur, and illustrate how the selection of an appropriate venue can improve or derail the effectiveness of risk communication
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Designing the risk communication messages:

  • View risk communication as an opportunity to demonstrate trustworthiness and an open, responsible, and caring attitude.
  • Listen to audiences concerns before attempting to tell new information.
  • Use risk comparisons with caution:
    • Test risk communication messages on a limited basis before using them more widely to ensure that they are easily understood and not misinterpreted. This is particularly important in situations of distrust.
    • Avoid comparison with risks that are generally viewed as unimportant.
    • Consider presenting comparisons of the same risk at different times, comparisons with other causes of similar risks, and comparisons with unrelated risks.
  • Look for features of risk information that can pose challenges to audience comprehension. Some possible strategies for dealing with those challenges include the following.
    • If using quantification, consider using graphic representations of how small or large an actual probability is.
    • Avoid acronyms, unfamiliar terms, or terms with unfamiliar meanings. Ensure that all terms are clearly defined.
    • When explaining complex phenomena, use tools such as diagrams, outlines, and analogies to ensure that audiences develop accurate mental models of the phenomenon.
    • When presented with audience misconceptions or incorrect instincts, acknowledge the possibility, point out why the view is inaccurate or incomplete, present the correct explanation, and show how it avoids the flaws/weaknesses of the original viewpoint.
Usefulness of Quantification or Metaphors in Risk Communication

In Lesson 1, we learned that there are different definitions of risk communication. Risk communication messages can be delivered using one-way (asymmetrical) communication, or sometimes two-way communication is required for effective risk communication. The effectiveness and impact of risk messages can also depend on the elements included. Effectiveness can also be influenced by the attention paid to the stakeholders that will receive, interpret, comment, or respond to the message.

Research has been published that evaluates whether quantified risk messages are better understood or better received by stakeholders than those that use metaphors or “tell a good story”. In general, the results of this work show that both approaches can be effective depending on the traits of the stakeholder group targeted. In organizations that conduct risk analysis, internal and/or scientific/technical stakeholders could both understand and interpret quantified (numbers, percentages) risk messages or categorization (high risk, negligible risk) to express the level of risk. However, the remaining stakeholders were not comfortable with, or did not understand quantification or categorization of risk. Furthermore, many of these stakeholders focused on the quantification or categorization “figure” (i.e., high risk, 75% likelihood) and ignored the contextual piece of the risk issue. The investigation also found that stakeholders from different cultural and ethnic backgrounds, even those with technical/scientific backgrounds, tended to group with those that did not understand, or like risk quantification or categorization. These stakeholders preferred to receive a risk communication message that put the risk into context by embedding it into a compelling, interesting, and true story.

The results of proper message creation have important practical implications for plant protection and for PRA. We want all of our civil society and institutional stakeholders to understand, be able to interpret, and respond to risk communication messages from their plant protection organization or service. Communicators responsible for developing the messages and communicating with stakeholders should be able to present the latest facts in ways that will ensure that the message has been received and understood by all.

Physical Venues for Risk Communication

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You can deliver risk communication messages with a variety of tools, modes, and technologies. It is a good idea to use a “neutral” venue for the meeting where the messages are delivered orally to civil stakeholders, and when these messages are particularly controversial. In this context, a neutral venue is defined as one that physically separates the messenger and the audience from association with an anger-inducing or potentially distrusted organization. A good example of this approach was already discussed in Lesson 3 – Molecular Farming and the Canadian Food and Inspection Agency, but other examples from plant protection are discussed here.

Parks and other outdoor settings can be appropriate venues to deliver risk messages concerning potential pests that can harm the praised resources in those environments. If the pest is already present, you may be able to positively impact the credibility and effectiveness of the message if you choose a setting the stakeholders can appreciate the injury or damage. If the media is in the audience, it provides them with opportunities to document their story with live photographs or footage. In the area of plant protection, other outdoor settings can be orchards, crop fields, or farm-stands. Indoor or urban neutral venues can include: conference/meeting rooms of hotels or convention centers, public squares and libraries, and, perhaps a university classroom or auditorium. For example, in California, USA, the venue to announce the light brown apple moth eradication program to civil society stakeholders was a hotel conference room. Members of the federal and state plant protection services were present at the meeting. However, a science advisory panel delivered the risk communication message. The regulatory authorities assembled the science advisory panel to advise and recommend management strategies for this pest.

In this topic, we learned what experts consider to be best practices when developing simple or complex risk communication messages. We understood that different stakeholders can respond in different ways to messages that contain numbers or categories of risk, or that use anecdotes to communicate the message. Finally, we discussed appropriate venues in which to deliver risk messages, particularly when these are controversial.

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