OMNIBUS

	Surveys of the general public or specific segments of the same.
	Restricted questionnaire, applied personally in all habitat strata
	Rigorous system of computerised random sampling, together with strict field work methodology.

QUANTITATIVE

	Sampling
	Face to face interviewing
	Telephone interviewing
	Quality control
	Coding and control
	Data processing

QUALlTATIVE

	In-depth interviews
	Focus groups
	Pre and post advertising groups
	Audio and video recording
	Recruitment of participants
	Qualitative fieldwork control

SOCIO-POLITICAL

	Evaluation of candidates and their images.
	Government balance sheets.
	Situation of the country.
	Studies of population groups
	Studies on a range of subjects of social interest

MARKET

	Products and brands
	Communications and advertising
	Quality and satisfaction
	Media Studies
	International studies