Question

Suppose you have developed a print advertisement for a new brand of fashion clothes and want to determine how much awareness it generates.   

You have made arrangements with a magazine publisher who has given you telephone numbers of a random sample of its subscribers. You can send some of these people a copy of the magazine with the new advertisement in it and send others copies which are same in every other way but without the advertisement. Awareness will be measured using telephone interviews. In the present case, which of the following two designs will give you a more accurate result: (1) before-after with control group design, or (2) after-only with control group design? Clearly state why you say so, taking into consideration the specific nature of the task here. If you think both methods would give you equivalent results, clearly say so. (Ignore costs of administering the two designs.)

Answer 1

Answer: From the above information the before - after with control group design is more appropriate method . If there is random sampling in controlled envirronment then it is favorable to check awareness of the brand before experiment and after experiment. we can find out response of the individual . it will be beneficial to find out awareness before giving information and after giving the information and compare both . it is good to give magazine without advertisement and thus record all the subscribers their view regarding new brand. after that they can give magazine with advertisement and record their statement regarding the new brand.