TECHNICAL EXPERTISE

A multipurpose organization focused on barometric measure, designed to guarantee reliability and stability in data collection :

1. Total integration :
   
   fieldwork and data handling (coding, translation, classification), computer development, results analysis and delivery;



2. ESTEL has a great proficiency in different fieldwork methods :
   
   telephone (CATI system), on-line surveys, self-administered questionnaires, video-questionnaires.