Populate the data set

Before telephone interviewing can take place, the project data set must be prepopulated with at least the following information for each case:

  • a unique ID must be used as _telkey;
  • a telephone number (including area code) must be used as _telephone; if the telephone number field is empty, the _telkey field is used instead;
  • a stratum must be imported into the question PRESTRATE for each case.

During prepopulation, the offset between the time zone of each number (based on area code) and GMT is calculated and stored in the data file. Therefore, the GMT offset of each area code used in a project must be defined in the CallWeb installation file.

Additional fields may be required on a project by project basis, such as a contact name or a substitute telephone number. Such additional information would be prepopulated into separate questions which would be given the INFOCATI characteristic so that they are displayed to the interviewer in the case management interface.

Data prepopulation is documented in the main CallWeb documentation.

Populate the data set

Before telephone interviewing can take place, the project data set must be prepopulated with at least the following information for each case:

  • a unique ID must be used as _telkey;
  • a telephone number (including area code) must be used as _telephone; if the telephone number field is empty, the _telkey field is used instead;
  • a stratum must be imported into the question PRESTRATE for each case.

During prepopulation, the offset between the time zone of each number (based on area code) and GMT is calculated and stored in the data file. Therefore, the GMT offset of each area code used in a project must be defined in the CallWeb installation file.

Additional fields may be required on a project by project basis, such as a contact name or a substitute telephone number. Such additional information would be prepopulated into separate questions which would be given the INFOCATI characteristic so that they are displayed to the interviewer in the case management interface.

Data prepopulation is documented in the main CallWeb documentation.