NON-STRUCTURAL CASE ACQUISITION IN TURKISH AS A SECOND LANGUAGE: RESEARCH BASED ON THEMATIC ROLES

Fundamental research topic in the second language acquisition studies is that acquisition process is based on how and when it occurred. In this research, acquisition strategy of lexical and inherent cases of individuals who acquired Turkish as a second language and the effects of inherent case s being more regulate and predictable on acquisition of second language were discussed. Ablative and dative were chosen from among the case types and source, goal and theme were chosen from among the thematic roles types. 36 participants consisting from language level of B1 (19) and B2 (17) took part in the study. The data collected via Grammaticality Judgement Test based on case, which was developed by researchers and The test was applied 240 native speakers to determine the reliability. Cronbach s alpha coefficient of internal consistency reliability was measured and reliability of the test was found to be .77.