Frequently Asked Questions
How does DRD work?
This proprietary technology looks across all "respondent sources" and provides respondents with a unique ID (panelist, RTS respondents, partner sample, and internally managed databases) based on a number of factors ranging- not a single factor- from the respondents pc to email address. Unlike other fraud prevention techniques that rely on email/physical mailing address, the ID stays with the respondent over time, and essentially groups all accounts into a single respondent ID.
DRD is extremely accurate in detecting duplications. To ensure 100% accuracy we use DRD in conjunction with a third party certification system from RelevantID.
Is any software installed or downloaded to the respondent's computer?
No. No software of any kind (ActiveX, Applications, .exe, etc) is downloaded or installed.
Can DRD work with multiple sample sources?
Yes. It is designed to work across multiple sample sources.
If you use Greenfield Online for full service projects (even those that require our use of outside sample, or third party providers, we will ensure that no respondent is a "duplicate" and manage multiple sample sources to get you the completes you need.
If you're using Greenfield Online for "sample only" studies, you can be certain that none of the respondents you receive from Greenfield Online will be duplicates, but our certification does not extend beyond the respondents that we provide.
If I delete my cookies and change my IP address, will DRD still be able to identify my computer?
Yes. In addition to DRD which is machine-based, we leverage RelevantID to add digital fingerprinting on top of traditional identification methods, allowing you to identify respondents who have deleted their cookies or changed panel accounts.
How does DRD use cookies?
Data is also partially collected by cookies, of which there are two kinds. Standard cookies are small data units, which are stored on the hard-drive of your computer. Most web browsers accept cookies automatically; however, your browser can be programmed in such a away that your computer will not accept cookies. You always have the option to deny the installation of a cookie on your computer. DRD also uses the second type of cookie; so-called "session based cookies." These are used for the navigational assistance described above and are only stored in the working memory of your computer. Session cookies are deleted off of your computer after you close your browser.
What type of algorithm is DRD based on?
DRD is cookie and pc-based, we leverage RelevantID for the algorithm used to fingerprint.
Does DRD collect any personally identifiable information?
No. DRD does not collect any information that can be used to contact or identify an individual. No names, emails, phone numbers, addresses, etc. are collected at any point. DRD analyzes technical information to identify only the respondent's computer, not the respondent.
This proprietary technology looks across all "respondent sources" and provides respondents with a unique ID (panelist, RTS respondents, partner sample, and internally managed databases) based on a number of factors ranging- not a single factor- from the respondents pc to email address. Unlike other fraud prevention techniques that rely on email/physical mailing address, the ID stays with the respondent over time, and essentially groups all accounts into a single respondent ID.
- For example, if a panelist participates in a survey on their home pc, and then again from their work pc both pc's are associated with their ID number.
- If an RTS, or an "Partner Sample" respondent participates in a Greenfield Online, Part of the Toluna Group survey they are also assigned an ID number which follows them through future surveys, and even if they one day become a Greenfield Online panelist!
- This ID number is randomly generated, and stays with the respondent even after cookies have been deleted.
DRD is extremely accurate in detecting duplications. To ensure 100% accuracy we use DRD in conjunction with a third party certification system from RelevantID.
Is any software installed or downloaded to the respondent's computer?
No. No software of any kind (ActiveX, Applications, .exe, etc) is downloaded or installed.
Can DRD work with multiple sample sources?
Yes. It is designed to work across multiple sample sources.
If you use Greenfield Online for full service projects (even those that require our use of outside sample, or third party providers, we will ensure that no respondent is a "duplicate" and manage multiple sample sources to get you the completes you need.
If you're using Greenfield Online for "sample only" studies, you can be certain that none of the respondents you receive from Greenfield Online will be duplicates, but our certification does not extend beyond the respondents that we provide.
If I delete my cookies and change my IP address, will DRD still be able to identify my computer?
Yes. In addition to DRD which is machine-based, we leverage RelevantID to add digital fingerprinting on top of traditional identification methods, allowing you to identify respondents who have deleted their cookies or changed panel accounts.
How does DRD use cookies?
Data is also partially collected by cookies, of which there are two kinds. Standard cookies are small data units, which are stored on the hard-drive of your computer. Most web browsers accept cookies automatically; however, your browser can be programmed in such a away that your computer will not accept cookies. You always have the option to deny the installation of a cookie on your computer. DRD also uses the second type of cookie; so-called "session based cookies." These are used for the navigational assistance described above and are only stored in the working memory of your computer. Session cookies are deleted off of your computer after you close your browser.
What type of algorithm is DRD based on?
DRD is cookie and pc-based, we leverage RelevantID for the algorithm used to fingerprint.
Does DRD collect any personally identifiable information?
No. DRD does not collect any information that can be used to contact or identify an individual. No names, emails, phone numbers, addresses, etc. are collected at any point. DRD analyzes technical information to identify only the respondent's computer, not the respondent.
