DIFFERENT TECHNIQUES PRODUCE DIFFERENT RESULTS – BUT TO WHAT EXTENT?
Symposium: 1985: Salzburg, Session 5 - Readers Per Copy
Authors: Langhoff, Per
Organisations: IFK - Instituttet for Kommuikasjon a.s.
Topics: Readership Model, Survey Descriptions
THE EFFECTS OF CHANGE OF FILTERS
Symposium: 1983: Montreal, Session 5 - Technical issues: title recognition, screens and filters, and bias
Authors: Langhoff, Per
Organisations: IFK - Instituttet for Kommuikasjon a.s.
Topics: Questionnaire Design