Differential Object Marking (DOM) is vulnerable to change in heritage speakers of Spanish and heritage speakers of Hindi. DOM is also vulnerable to L1 attrition in Spanish-speaking first-generation immigrants but not in Hindi immigrants. This chapter examines DOM vulnerability in Romanian. The chapter describes the sociolinguistic characteristics of the Romanian-speaking population in the United, followed by a summary of the overall results of the linguistic background questionnaire and the linguistic tasks. The overall results show that, compared to the Spanish and Hindi-speaking populations, the Romanian-speaking population in the United States is far less numerous, yet their Romanian language skills remain relatively strong compared to the other two groups. The accuracy with DOM of the first-generation Romanian immigrants on all linguistic measures did not differ from those of the Romanian speakers in Romania. Just like in the Hindi study, there appears to be no evidence of language change in the homeland nor signs of attrition of this phenomenon in the first-generation adult immigrants sampled in this study. Yet, DOM and accusative clitic doubling (CD) were found to be somewhat vulnerable to omission in heritage speakers, especially in those exposed to English since birth or very early in life (the simultaneous bilinguals).

This chapter asks whether DOM—which is a vulnerable grammatical area in Spanish in the United States—is also vulnerable in Hindi as a heritage language. The results of the study presented in this chapter show that some Hindi heritage speakers also display omission of DOM in all tasks. But unlike what was found for the Spanish-speaking Mexican immigrants in the Spanish study discussed in the previous chapter, there is no indication of ongoing language change in the Hindi spoken in the homeland nor apparent signs of attrition of DOM in the Hindi-speaking adult immigrant group. The sociolinguistic characteristics of the Hindi/Urdu-speaking population in the United States is discussed. The results of the linguistic background questionnaire and the linguistic tasks (oral narrative task, elicited production task, written task, bimodal acceptability judgment task, auditory/written comprehension task) are presented and discussed.

The acquisition of DOM in Spanish monolingual children and Spanish-speaking bilinguals has been intensely investigated in the last two decades. One of the main objectives of the in-depth study of DOM conducted for this project was to confirm and evaluate the strength of previous findings of DOM omission in Spanish-English bilingual children and in young adult heritage speakers. If erosion of DOM in Spanish as a heritage language is indeed a robust phenomenon, it should be documented in other groups of heritage speakers. Although hypotheses about the potential role of the parental generation in contributing to heritage language grammars abound, at the time the Spanish study reported in this book was conceived, there were no studies of potential attrition of DOM in adult immigrants. Therefore, the first-generation immigrant group was included to put the language transmission hypothesis to the test. This chapter presents a brief overview of Spanish in the United States before summarizing the main results of the language background questionnaire, and of the production, comprehension and judgment tasks described in Chapter 5.