Less is Not More: Improving Findability and Actionability of Privacy Controls for Online Behavioral Advertising

Title of the Paper

Less is Not More: Improving Findability and Actionability of Privacy Controls for Online Behavioral Advertising

Paper Information

• Domain: Human-Computer Interaction Design, Privacy Controls, Online Behavioral Advertising (OBA)
• Keywords: Privacy, Ad Settings, Social Media, Social Platforms, Usability, User Interface, Consent, OBA Controls

Research Background and Problem

• Problem and Challenges: Many tech companies claim to provide privacy controls to users, but these ad controls are often difficult to locate, lack transparency, and are not actionable. Users frequently complain about the opacity and privacy issues of online behavioral advertising. Facebook's existing ad settings are hard to find and ambiguously explained, hindering users' ability to meet their privacy needs.
• Significance: Privacy control mechanisms are directly tied to user experience and data protection. Improving these mechanisms can not only enhance users' trust in the platform but also reduce frustration during usage.
• Research Motivation: The authors aim to improve the "findability" and "actionability" of ad settings to enhance users' ability to manage their data and analyze the impact of these improvements on user behavior and emotions.

Solution

• Method:
  • Proposed and tested two variables: the location of entry points for ad controls (within ads, at the top of the news feed) and their actionability (high actionability with direct links, low actionability pointing only to general settings pages).
  • Designed experimental ad control interfaces and enhanced Facebook's interface using a Chrome extension.
  • Conducted field experiments to test users' ability to discover ad controls, the effort required to complete tasks, and their evaluation of the interface usability and the platform.
• Innovative Aspects:
  • Emphasized design methods that directly display privacy control options within the user experience flow.
  • Provided interfaces with higher actionability, including direct entry points to key ad settings functions, significantly improving existing designs.
• Implementation Steps:
  1. Designed prototypes based on iterative user studies;
  2. Integrated the designs into real user environments via a Chrome extension;
  3. Compared user discovery rates, click counts, and subjective experiences under different conditions through experiments.

Research Findings

• Specific Results:
  1. Entry points placed within ads or at the top of the news feed significantly improved the discoverability of ad settings.
     • For instance, a high-actionability interface at the top of the news feed increased the discovery rate of the custom audience feature from 22.7% to 63.6%.
  2. High-actionability designs effectively reduced the number of clicks and time required for users to locate ad settings.
  3. Users rated high-actionability interfaces and immediately accessible options highly, considering these enhanced designs approachable and easy to operate.
• Comparison with Existing Solutions:
  • The new designs significantly improved the discoverability and usability of ad settings, with participants reporting higher satisfaction.
• Experimental Results:
  • High-actionability designs performed best in terms of task execution efficiency and ease of use for settings.
• Limitations:
  • Experiments were conducted only on Facebook's desktop version and did not involve mobile devices. Recruitment was limited to fluent English speakers, which may restrict the applicability of results to other user groups.
  • Tests were short-term, and the long-term impact of using these designs on user emotions and behavior remains unexplored.
• Future Directions:
  • Design and testing for mobile platforms.
  • Investigate the differing needs of various user groups regarding ad control designs to achieve more personalized settings.
  • Conduct new studies on the impact of default ad settings on users' privacy perceptions.