Implicit and explicit knowledge of the second language (L2) are two central constructs in the field of second language acquisition (SLA). In recent years, there has been a renewed interest in obtaining valid and reliable measures of L2 learners' implicit and explicit knowledge (e.g., Bowles, 2011; R. Ellis, 2005). The purpose of the present study…

This study examined the second language (L2) development of adult learners of Spanish at three levels of proficiency during and after a semester of instruction. A fundamental goal was to identify cognitive and psychosocial individual differences (IDs) that can explain between-learner variation over time in order to expand our understanding of the…

In recent years, T-unit analysis has been applied in second language research to characterize the syntactic nature of linguistic input and to assess the syntactic maturity of the learners' written production. This measure has been seen to provide an objective and reliable method of determining the overall complexity of language samples. However,…

The purpose of this study was to locate those measurable criteria of responsiveness to language which have not been utilized to any significant extent in standardized tests. The project involved creating a testing instrument, reviewing of the instrument by a panel of experts, and applying the resultant test to a small population of college…

Research into language acquisition is reviewed and implications for practice are discussed. The research stemmed from the State of California's mandate to use specific oral language instruments for identifying students who are limited English speakers. The development of a test to identify and place English as a second language students in…