To assist language researchers in their analysis of interlanguage, some values for the linguistic variables of Source Language (SL), Interlanguage (IL), and Target Language (TL) are set forth. Although the fundamental assumption underlying interlanguage research is that interlanguages are linguistic systems, it is difficult to describe the…

This study focused on linguistic analyses used in the PIF Project (Project in Error Analysis, Interlanguage Studies and Contrastive Linguistics), an ongoing study of learner language and a project in foreign language pedagogy. For the project, 120 Danish learners of English were divided into 12 groups representing different Danish educational…