At Pearson, we understand the importance of the information our clients seek. In order to ensure it is of the highest quality, we have created a process to guarantee quality control at each research stage through. The clear definition of objectives and target population. Strict qualitative recruiting through in-house recruiters and several controls Creation of first-rate questionnaires and topic guides thanks to our considerable experience, substantial information database and repeated testing. Sample design and selection of data collection method to achieve the most accurate results at a low cost. Impeccable fieldwork. Our fieldwork is unparalleled thanks to excellent personnel, proper incentives and several stages of supervision. Field personnel consisting of exclusive research professionals and interviewers with at least three years' experience. The assignment of one supervisor, with at least four years' experience, for every four interviewers. The use of several methods to test our questionnaires, depending on clients´ time limitations, such as in - depth interviews and pilot tests. Deep training of interviewers for every project. Supervision and corroboration of 100% of the interviews either on-site or post-event.