Since March 2011, the Department of Hungarian Language and Literature, Faculty of Arts, University of Maribor has participated as a partner in the international project ELDIA (European Language Diversity for All), undertaking studies of the Hungarian language and its speakers in Slovenia. The Maribor project group has investigated the linguistic situation of the Hungarian-speaking minority in Slovenia from the various perspectives determined within the project. The present article consists of two parts. In the first, shorter part, the ELDIA interdisciplinary project is presented, along with its goals, the languages investigated and the new approaches. The second part contains an analysis of the initial data obtained from a large corpus that was assembled by collecting data through surveying and interviewing members of the Hungarian-speaking minority in Slovenia and members of the majority population of Slovenia. After presenting the basic demographic data on the respondents, there is an analysis of the four basic language skills of the respondents in both groups. The level of language skills for each language (native tongue, second language, foreign languages, the mother tongue of indigenous minorities in Slovenia) was marked by the respondents themselves on the basis of self-assessment on a five-point scale. The analysis of the results according to language and individual language community pinpoints tendencies that, in times of economic and social globalisation, determine the use of languages in a variety of language venues in the multilingual and multicultural world.