(total Belgian universe = 7,761 mil individuals *)
Sample size:
W0 (pretest sept13): N = 1000
W1 (posttest okt13): N = 1000
57% NL / 43% FR
50% Male / 50% Female
30% 18-34 yo/ 41% 35-54 yo / 29% 55+ yo
* The sample of CIM-study 2012 is randomly composed on a base of persons who were randomly chosen within the NIS-quarters.
N=10 488 individuals for total survey of 2012!
Universe
Sample structure
Both waves are comparable in terms of socio-demographic criteria, allowing us to compare both tests in an objective way (no bias from external factors).
* The sample of CIM-study 2012 is randomly composed on a base of persons who were randomly chosen within the NIS-quarters.N=10 488 individuals for total survey of 2012!