Unformatted text preview: the basis of which the validity of CPH was rejected. This study basically measured the rate of acquisition for beginners, but the period of study may be shorter than the period needed to develop an ultimate attainment level of L2. The best interpretation of this study would be in the first stage of L2 learning, adolescents with higher cognitive ability and stable first language are more advantaged than very young learners. Johnson & Newport’s cross-sectional study examined the competence of L2 speakers who acquired L2 at different ages. Through a grammaticality judgment test, it measured an ultimate attainment level and the result supported CPH. According to this study, therefore, an age is a strong predictor of L2 competence. These two studies investigated the same topic, but in fact they examined different aspects of L2 learning process through different research designs. Snow & Hoefnagel-Hohle’s study implies...
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- Spring '10
- Second language acquisition, Longitudinal study, Cross-sectional study, ultimate attainment level