Towards Design Guidelines for Effective Health-Related Data Videos: An Empirical Investigation of Affect, Personality, and Video Content

Document Title

Towards Design Guidelines for Effective Health-Related Data Videos: An Empirical Investigation of Affect, Personality, and Video Content

Document Information

• Subject Area: Design and communication effectiveness of health-related data videos
• Keywords: Data videos, narrative visualization, data storytelling, persuasion techniques, attitude change, personality traits, emotional impact, actionable solutions, physical activity

Research Background and Problem

• Identified Problems or Challenges: Data videos (DVs), as a visualization method for conveying large amounts of information and storytelling, hold potential for promoting health-related behavior change. However, there is a lack of in-depth research on how to effectively design such videos. Additionally, the mechanisms through which viewers' personality traits and emotional responses influence video effectiveness remain unclear.
• Significance: Health-related issues such as insufficient physical activity, unhealthy dietary habits, sleep problems, and severe diseases (e.g., cardiovascular diseases, obesity, cancer) are closely linked. Designing effective videos to promote behavior change can significantly improve public health.
• Research Motivation and Related Work:
  • Data videos can present narrative data and actionable information, attracting viewers and encouraging behavior improvement.
  • The authors aim to explore the design mechanisms and effectiveness of data videos by integrating health information dissemination, emotional impact, and personality differences.

Solution

• Proposed Methods or Solutions:
  • Conducting two empirical studies to investigate the effects of emotional induction, viewers' personality traits, and information types on promoting health behavior intentions through data videos.
  • Developing preliminary design guidelines for health-related data videos.
• Innovations:
  • Systematic analysis of the impact of narrative structure, content design, and emotions in data videos on viewers' behavior intentions.
  • Exploration of personalized video design strategies by incorporating user personality traits and emotional responses.
• Implementation Steps and Key Techniques:
  1. Study 1: Analyze the impact of viewers' emotional responses (negative emotions such as anxiety and worry) and personality differences (e.g., neuroticism and conscientiousness) on the persuasive potential of videos.
  2. Study 2: Examine the effects of manipulating solution types in videos (no solution, general solution, specific actionable solution) on emotional impact and perceived information usefulness.

Research Findings

• Specific Findings:
  1. Videos containing threatening information without solutions increase viewers' negative emotions and reduce the persuasive potential of the videos.
  2. Videos with solutions reduce viewers' negative emotions and enhance the perceived usefulness and actionable nature of the information.
  3. Individuals with high neuroticism are more susceptible to negative information, while those with low conscientiousness exhibit greater resistance to negative information.
  4. Providing detailed and specific solutions is more effective than offering only general solutions, although general solutions can partially mitigate negative impacts.
• Advantages:
  • Behavior Change Intentions: Effectively designed videos can better influence viewers' intentions to improve health behaviors.
  • Targeted Design: Design strategies based on viewers' personality differences and emotional responses offer potential for personalized video creation.
• Experimental or Evaluation Results:
  • The two empirical studies demonstrate that videos with solutions significantly alleviate negative emotions caused by threatening information and enhance viewers' perception of information usefulness.
  • Video actionability and information usefulness are key predictors of persuasive potential.
• Limitations and Future Directions:
  • The experiments were conducted online, limiting physiological measurements of participants' emotional responses. Future research could adopt more objective measurement methods.
  • The current study focuses more on the impact of negative emotions; future research could explore the role of positive emotions (e.g., hope and motivation).
  • The sample size was relatively small; larger-scale replication studies are recommended to validate existing findings.
  • Video content could further explore positive framing methods and expand to a broader range of health topics.

Preliminary Design Guidelines

1. Health-themed data videos should include solutions to balance viewers' emotional experiences and alleviate negative emotions.
2. Detailed and specific solutions help increase information usefulness and video persuasiveness. However, when resources are limited, adding general solutions can be an alternative.
3. For viewers with high neuroticism, threatening information should be carefully designed, and solution information should be emphasized at the end of the video.
4. For viewers with poor self-perceived health status, the intensity of negative information should be limited, and the rationality and feasibility of solutions should be emphasized.

This study provides valuable references for designing more impactful health-related data videos, aiming to enhance behavior change intentions through emotional and personalized adjustments. These findings hold significant implications for practical design in public health communication.