Understanding ASA24 Access and Records
The Automated Self-Administered 24-hour (ASA24) Dietary Assessment Tool is a web-based system primarily used in research to collect detailed dietary intake data from participants. The system's design separates user roles into a respondent (the participant) and a researcher (the study administrator). This distinction is crucial for understanding who can access and retrieve data and when.
For participants, the ability to go back and access records is limited and highly dependent on the type of study they are completing. There are two primary data collection methods within ASA24: the 24-hour dietary recall and the multi-day food record.
24-Hour Dietary Recall Records
In a 24-hour dietary recall study, a participant reports all foods and drinks consumed during the previous day or the past 24 hours in a single session. Once the participant indicates they are finished with the recall, the session is considered complete. According to the ASA24 Troubleshooting Guide, a participant cannot log back in to modify this completed data. The recall is closed once the participant is done or the reporting period (typically 24 to 36 hours, as defined by the researcher) has lapsed.
Food Record (Food Diary) Records
For multi-day food record studies, respondents log in to report their food and drink intake throughout the day or over consecutive days. This method offers more flexibility for participants to review and update their records during the reporting window. Specifically, participants can often log in on the day after their last reporting day to make final changes. The "Change Day" button allows them to navigate to previous days within their current record to add or edit entries. This window, however, is not indefinite. Once the entire multi-day record is marked as complete or the study's designated time frame ends, access is cut off.
Participant vs. Researcher Retrieval
The most significant distinction regarding data retrieval in ASA24 is the difference in access between participants and researchers. Participants' access is temporary, while researchers have long-term access and control over the study data.
Participant Access Limitations:
- Recall Studies: No access after initial completion.
- Food Record Studies: A short window to edit/complete data, typically one day after the last report day.
- Post-Study Access: Cannot retrieve their raw, completed records at a later date directly from the system. Records are stored securely in a database accessible only to the research team.
Researcher Access and Data Retrieval:
- Full Control: Researchers manage study logistics, respondent accounts, and data collection through the ASA24 Researcher website.
- Downloadable Files: Researchers can request and download a variety of analytical files containing the collected nutrient and food group data for all respondents or a specified range.
- Long-Term Data: Study data remains available on the ASA24 system for researchers to retrieve before the version is retired. Researchers are notified when a version is retiring to download their data.
- Respondent Reports: Researchers have the ability to retrieve a Respondent Nutrition Report (RNR) for participants and share it with them, depending on the study's settings.
Access and Record Retrieval Comparison Table
| Feature | ASA24 Participant | ASA24 Researcher/Administrator | 
|---|---|---|
| Ongoing Access | Yes, during an open reporting window for multi-day food records. | Yes, throughout the study's duration and before the ASA24 version is retired. | 
| Post-Completion Access | No, for completed recalls. Limited window (e.g., 1 day) for completed food records. | Yes, data can be downloaded at any time before version retirement. | 
| Editing Records | Yes, during the reporting period. No, after the period closes or recall is complete. | No, researchers cannot edit a participant's entry directly, but they can manually update data outside the system if needed. | 
| Data Retrieval | No, cannot directly download raw data files. | Yes, can download comprehensive data files (CSV format) from the Researcher website. | 
| Nutrition Report Access | Can receive a Respondent Nutrition Report (RNR) from the researcher, depending on study settings. | Can access and distribute RNRs to participants. | 
The Role of the Study Administrator
For a participant, the study administrator is the key to any post-completion data access. Since participants cannot retrieve their own records after the reporting window closes, they must contact the person or team who asked them to complete the ASA24 survey. The researcher can then use the ASA24 Researcher Website to generate the necessary reports or data files. If the researcher opted to provide participants with the Respondent Nutrition Report, they may be able to provide that information. This is the only official pathway for a participant to gain insight into their historical ASA24 data.
Conclusion
Participants in an ASA24 food record study have a short window to make final adjustments. The ability to go back into the system and retrieve your records later is unavailable. For completed 24-hour recalls, access ends immediately upon completion. The study's researcher handles all long-term data management and retrieval. Contact the study administrator directly to inquire about data sharing and request your nutritional report if a copy of the records is needed.
Visit the ASA24 Informational Website for additional details on the system's features.