Tuesday, 13 March 2001

In May 2001 Zapera conducted the largest online access panel validation study of its kind in Europe.

Almost 17.000 online and telephone interviews were conducted in Denmark, Norway, Sweden and Finland.

The purpose of the study was to show that when conducted professionally, Internet research is both valid and reliable.

The main finding of the study is that the two methods perform equally well.

Differences between the telephone and Zapera’s Internet survey typically stem from methodological differences and not from sample differences.

The study demonstrates Zapera’s position as market leader in online market research and is an indication of our continuing commitment to documenting the strengths and weaknesses of online research.