Research plays a critical role in decision making. It provides information that helps individuals at the agency and client better understand their product and target audience, the marketing environment, and the effectiveness of the product's advertising and media placement. Research helps inform advertisers' judgement so that they can identify their range of option and evaluate the strengths and weaknesses of each option.

Primary research

-It is first-hand research. It may include interviews which you conduct. It also includes surveys or questionnaires which you organise and analyse. Be careful how you use information collected in a survey, however, as it is only a small sample and should not be used alone to validate arguments.

-It collects original, typically proprietary, information to meet an advertiser's or marketer's informational needs. Primary research is used when secondary research is either nonexistent, unreliable, or too costly. The selection of primary...