The validity and efficiency of data collection using screen interviews compared with telephone research
This paper describes the results of a methodological test conducted by NOW Research, on behalf of British Telecom - PRESTEL. The purpose of the research was to assess the validity and efficiency of collecting market research data through the medium of a television screen using PRESTEL, British Telecom's public viewdata service, compared with central location telephone interviewing.
Authors: Diana Hardie, Margaret Holmes
June 15, 1991
Authors: D. De Leeuw, Joop J. Hox, Ger Snijkers
August 1, 1998
- This could also be of interest