Survey Methodology
The data contained in the LAMP Database has been gathered using an approach that borrows from anthropological and sociological research methods. In particular, the LAMP employs the ethnosurvey approach, which combines the tecniques of ethnographic fieldwork and representative survey sampling to gather qualitative as well as quantitative data. The two kinds of empirical data are compared throughout the study to yield results of greater validity than either an ehnography or a sample survey could provide alone. This method was designed to provide a picture of Latin American migration to the United States that is historically grounded, ethnographically interpretable, quantitatively accurate, and rooted in receiving as well as sending areas.