Computer Assisted of telephones interview (CATI) marks the support of the telephone interview with the help of the computer. This happens in the following technical subranges:

Conversion of the questionnaire

The questionnaire, which is mostly present as text (file), is converted into a computer program. The interviewers accomplish then the interviews at the screen, and the questionnaire program (CATI program) presents question for question at the screen. The interviewer enters the answer. The entire control logic of the questionnaire is correctly gone through by the computer program.

Administration of all which can be called telephone numbers (addresses),

If within a short time many persons are to be asked, a stringer duck re-submission administration of the telephone numbers is indispensable. Called numbers can be occupied, the looked for person can straight not at home be or an interview partner interrupt the interview and do not ask for continuation two days later. All these events must be logged and processed always exactly, so that to the correct minute this telephone number is again called and brought to an interviewer to the screen. With international projects thereby also still the Zeitverschiebung is to be considered. In CATI systems this administration settles a component of the overall system.

Replacement or driving of the telephone system

The CATI system implemented either even the necessary telephone technology, at least however steers it an existing telephone system and receives from this the answer messages and logs it. The address administration (component 2) recognizes that a telephone number is to be called. The telephone component implements the selecting instruction, makes if necessary the connection with the interview component and/or returns the result of the dialing attempt to the address administration. Is e.g. occupied, then this is acknowledged immediately to the address administration and this can plan the next call attempt temporally.

Monitoring of the Telefonstudios by the supervisors

The monitor component make possible it at any time the supervisor (surpervisor) on his screen the entire Studiobetrieb to supervise. On different windows it is indicated who at which screen sits, where which project is worked on, how many interviews per project was already accomplished. Over wading CH an and list function can lock itself the supervisor on an interviewer place and along-pursue the interview in real time in clay/tone and picture.

Project statistics

Characteristic numbers of the Statusse of the different projects are prepared in table and Chartform. So for example the project manager can prepare daily a statistics of the current address situation, determine the distribution of the interview times or calculate characteristic numbers for the interviewer performance. The project statistics is not concerned with the data of the questioning raised in the project. She evaluates rather only information about the project completion.

Support the software development

Among them one understands the programming environment for the questionnaire developers (e.g. editor, debugger, test driver, run time environment) and the software for the dressing of the seized data for the purpose of the delivery to tabulating and evaluation programs. For the implementation of questionnaires usually special programming languages are used, which were optimized only for exactly this application.

Language support

This component helps to translate a questionnaire program in such a way that the natural-language parts of the questionnaire are brought into the new target language, without the syntax of the questionnaire program is impaired thereby. A program skeleton (the syntax) to a certain extent a new skin (the interview language) is put on.

Not all CATI systems exhibit all these components and some also still have additional modules. CATI is however in each case more than only a programmed questionnaire.

Samples

The determination of samples is made with the CATI by the so-called RLD procedure.

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