Table 5.
Detailed summary of DADOS-Survey compliance with CHERRIES
| CHERRIES Item Category | CHERRIES Checklist Category | DADOS-Survey compliance |
| Design | Describe survey design | √ Described in the recipient e-mail invitation |
| IRB approval and informed consent process | IRB approval | √ Information provided in the recipient e-mail invitation and first page of survey |
| Informed consent | ||
| Data protection | ||
| Development and pre-testing | Development and testing | √ Described in the recipient e-mail invitation |
| Recruitment process and description of the sample having access to the questionnaire | Open survey versus closed survey | √ User selectable option based on IRB approval from host institution |
| Contact mode | √ Investigator must report | |
| Advertising the survey | ||
| Survey administration | Web/E-mail | √ Survey can be posted on the Web or sent over e-mail. Responses are automatically captured by DADOS |
| Context | √ Investigator must report | |
| Mandatory/voluntary | ||
| Incentives | ||
| Time/Date | √ Investigator must report. Time/Date data is automatically captured by DADOS. | |
| Randomization of items or questionnaires | √ DADOS is user configured to randomize/alternate items | |
| Adaptive questioning | √ DADOS is user configured to conditionally display items | |
| Number of items | √ DADOS automatically captures and reports this data | |
| Number of screens (pages) | ||
| Completeness check | √ DADOS allows user to configure a completeness check based on Java Script. A non-response option is provided to participants. One response and multiple response options are also available. | |
| Review step | √ Review step allows participants to alter their responses before submission | |
| Response rates | Unique site visitor | √ DADOS captures IP address to determine unique site visitors |
| View rate (Ratio unique site visitors/unique survey visitors) | √DADOS computes this information and provides user with the results | |
| Participation rate (Ratio unique survey page visitors/agreed to participate) | ||
| Completion rate (Ratio agreed to participate/finished survey) | ||
| Preventing multiple entries from the same individual | Cookies used | For non-anonymous surveys, a user can only answer a survey once. For anonymous surveys, if the user does not complete the survey at once, the data collected is not saved. |
| IP check | This was decided not to be implemented so that different users could use the same computer to answer the survey | |
| Log file analysis | - | |
| Registration | The registration is done by importing a spreadsheet with the subjects. Once a subject completes the survey he/she cannot log in using the same user again. | |
| Analysis | Handling of incomplete questionnaires | All surveys are analyzed, both completed and uncompleted; uncompleted questions are understood as missing. |
| Questionnaires submitted with an atypical timestamp | - | |
| Statistical correction | - |