Which of the following responses are considered Auditable responses?

Auditable responses are those that can be tracked and verified, ensuring the integrity and authenticity of the data collected. In this context, SMS responses and anonymous link responses both fit the criteria for being auditable.

SMS responses are tied to specific phone numbers, providing a direct line for verification of the respondent's identity if necessary. This allows organizations to maintain accountability and traceability for the responses collected. On the other hand, anonymous link responses can still be considered auditable due to the unique identifiers or tokens that can be associated with each link, allowing researchers to track participation rates while still preserving respondent anonymity.

While email and SMS responses also have traceability, the focus here is specifically on the balance of anonymity and verifiability. Response via smartphone apps may or may not be auditable depending on the app's design and data tracking capabilities, and public comments and reviews, although they can provide valuable insights, typically lack individual traceability that enables them to be categorized as auditable in a structured data collection process. Thus, the combination of SMS and anonymous links allows for robust data integrity while accommodating various respondent preferences.