Although CATI, like CAWI, is often associated with quantitative research, this method also allows qualitative information to be collected. In an interview, the interviewer can explore and expand philippines number list on the respondent's answers by asking additional questions. This type of survey is called an "in-depth interview." It is often these expanded, subjective responses from respondents that are most valuable to the person commissioning the consumer research.
CAPI (Computer Assisted Personal Interviewing) is the most personal and expensive technique for conducting consumer research. It consists of a "face-to-face" interview in which the interviewer meets the respondent in person. It allows for the most accurate understanding of the subjective feelings of customers. In-depth contact, direct interaction and involvement make the data obtained in this way detailed, reliable and authentic. However, the CAPI method is time-consuming and requires careful advance planning.
PAPI - Paper And Pencil Interviewing is the most traditional of the survey techniques. It is based on physical paper questionnaires. This method of carrying out consumer surveys is currently one of the least used. This is due to the high costs associated with the need for the physical presence of the interviewer and the respondent, the need to transfer the data from the questionnaire to the computer system, but also the possibility of errors and omissions. Unlike computerized surveys, with PAPI it is easy for the respondent to skip questions or give incomplete answers. For this reason, this method is often used in combination with simple quantitative questions on a numerical scale.