Desk ResearchStudies that compile analytical information typically related to a sector or previously researched topics by integrating secondary sources and literat..
CATI (Computer-Assisted Telephone Interviewing)Telephone interviews conducted using computer assistance between the interviewer and the respondent.
CATI, or Computer-Assisted Telephone Interviewin..
MailInformation collection method based on sending printed questionnaires to predetermined respondent addresses, which are then returned to the center by ..