Proposes a model of second language learning that accounts for discrepancies both in individual achievement and achievement in different aspects of language learning. (Author/AM)

Examines the central characteristics of interlanguages that distinguish them from all other natural language systems. It is proposed that, since permeability presupposes an interlanguage norm which is relatively stable, we are forced to gather enough data to establish the overall level of linguistic competence of the learner. (Author/POP)

Based on Carol Chomsky's methodology, an attempt was made to investigate the sequence of acquisition of a set of complex English structures by adult second language learners. The results indicated a development pattern analogous to that reported by Chomsky for child native speakers. (MS)

A test was administered to 200 children (ages 6-15) who were learning ESL to study the relationship between age and the rate of learning. The results indicated that while the rate of learning English as a second language changes with age, the order of acquisition remains constant. (MS)

The longitudinal case study reported here provides some information about early stages of learning ESL and factors affecting language development. Comparison reveals striking similarities to first language acquisition sequences, and therefore a similarity in adult and child learning. (CHK)

In comparing the mechanism of a native language sound change and the acquisition of a second language phonology, it is concluded that individuals approach the learning and changing of phonology in a psycholinguistically unified way; the foreign language learner is fundamentally like himself as a native language changer. (Author/POP)

A study was conducted to determine if informal learners of ESL had the same acquisition order of morphemes as formal learners have and to find out what would happen to the established order if only certain of the grammatical morphemes were explained and drilled. Instruction did not change acquisition order. (Author/KM)

This article reports major findings of a longitudinal, naturalistic study of the acquisition of English as a second language by a five-year-old Japanese girl. The emphasis is on empirical findings rather than on any particular theoretical orientation. (Author/POP)