Han's (2009, 2013) selective fossilization hypothesis (SFH) claims that L1 markedness and L2 input robustness determine the fossilizability (and learnability) of an L2 feature. To test the validity of the model, a pseudo-longitudinal study was designed in which the errors in the argumentative essays of 52 Iranian EFL learners were identified and…

Summarizes recent empirical research in second language acquisition. Discusses relationship between age and second language learning, implications of invariant order of acquisition of morphemes obtained in various second language acquisition studies, and role of errors in second language acquisition. (Author/BK)

A longitudinal study of English acquisition by a Vietnamese mother and her daughter is reported. Subjects of this study are Lan, a young Vietnamese woman in her late twenties, and her daughter Than, who was four years old at the time this study began. Neither knew any English when they resettled in Texas in the summer of 1975 after fleeing from…

A longitudinal study was conducted using 18 mildly/moderately retarded 14- and 15-year-olds to investigate word knowledge acquisition and subcategorization features of the words. Retarded children's errors were highly correlated with word frequency. Two interpretations (gradual acquisition of word knowledge and a reorganization theory) are…

Children's self-monitoring of language production, as it is reflected in spontaneous speech repair, was studied. Recordings of the speech of three children aged two to three were analyzed for spontaneous phonological, morphological, lexical, and syntactic repairs. After tabulation, repairs were identified as "for the listener"…