In a research questionnaire, question asked in different way to check whether the same answer is forthcoming. Clarifies possible misunderstanding and checks accuracy of response.
The Six Vital Variables of Performance Marketing: Testing Markets, Products, Prices, Offers, Media/Materials, Creative Approaches.
There are basically six major factors which affect the viability of any performance marketing operation, and it is important that you accept from the outset that each of them is variable, and you must test …