score – and may provide bias from those being interviewed – but the research interview can be particularly effective for attitude assessment, especially when used to complement the observational method. Data collected through the observational method can be formally processed like data obtained through more formalized instruments if attempts are made to record the data in more public forms instead of only through the approach most characteristic for this kind of data have used so far. Many linguists believe that comparisons of linguistic and social behavior have been blocked by the fact that linguistic and anthropological studies are rarely based on comparable sets of data. While an anthropologist's description refers to specific communities, linguistic analysis refers to a single language or dialect, and the behaviors formed through verbal signs and structural similarities. The process of linguistic analysis is oriented towards the discovery of unitary, structurally similar wholes. The effect of these procedures is the selection of one single variety out of the many varieties that characterize everyday speech and behavior. English is often thought of as one single language, as though people forget the many dialects and accents that come with it. English spoken in the United States of America will not be the same English spoken in Australia, or in the countries of Africa. Even American English spoken in New York will not be exactly the same as American English spoken in Alabama. Code-switching While code-switching, a situation in which a speaker alternates between two or more languages, or language varieties, in the context of a single conversation, is not the only form of linguistic variability to carry a social, or referential meaning, it does provide a particularly clear approach to understanding the relationship between social processes and linguistic forms, because both the social and the linguistic boundaries in question tend to be most evident than in other monolingual settings. In anthropological linguistics, code-switching has been approached as a structurally unified phenomenon whose significance comes from a universal pattern of relationships between form, function, and context. Many linguists are approaching code-switching as a form of verbal strategy, which represents the ways in which the linguistic resources available to individuals may vary according to the nature of their social boundaries within their communities. While the emphasis is on language use in social interaction as the preferred focus for examining exactly how those processes work, it is clear that future research