As in any field of scientific inquiry, advancements in the field of second language acquisition (SLA) rely in part on the interpretation and generalizability of study findings using quantitative data analysis and inferential statistics. While statistical techniques such as ANOVA and t-tests are widely used in second language research, this review…

Addresses the relationship in second language acquisition (SLA) research between theory and data. Suggests a potential problem for the field of SLA; a lessening rigor in data analysis where theory moves more into focus. Documents how the problem manifests itself in a specific area of research in SLA--syntax and morphology--then discusses possible…

Examines evidence offered to support the idea of a sensitive period for second language acquisition. Findings indicate that there is insufficient evidence to accept the claim that mastery of a second language is determined wholly, or even primarily, by maturational factors. (34 references) (Author/CK)