2. Main Impact Studies Media Surveys DIVA Detecting Interactively the Value of Audio - Client: VAR (VRT) - Originally: Radio Impact Barometer. From 2012 on: Multimedia Impact Barometer From 1997 to 2011: - Separate barometers: DIVA (radio-posttest) & AdEval (TV-sponsoring posttest) - Methodology: CATI-methodology (phone) - Frequency : every 2 weeks - N= 200 interviews (Flanders) - 15-54 y.o (they evaluated 15 radio spots each) From 2012: - Radio / TV-sponsoring - Analysed items : ad recognition, ad attribution, qualitative perception and impact - Frequency: every 2 weeks - N = 2*200 interviews (Flanders) – 15-59 y.o (they evaluate 5-6 advertisements) - Fieldwork carried out by TNS Media - Interviewed via CAWI-methodology (internet) 180
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