This study examined the extent to which second language (L2) learners’ syntactic prediction resembles or differs from native speakers’ and the role of L2 proficiency in this process. An experimental group of 135 Chinese learners of English and a control group of 58 English native speakers participated in a phrase-by-phrase self-paced reading task where the experimental sentences were contrastive in whether the DP disjunction was preceded by either or not. To ensure that the participants had sufficient knowledge about the target stimuli, they were asked to additionally judge the acceptability of the experimental sentences. The results showed that like native speakers, L2 learners read the critical region consisting of “or” and a DP disjunct faster when it was preceded by either compared to when either was absent. In addition, this effect of the presence versus absence of either spilled over to the post-critical region. Moreover, L2 proficiency was not found to robustly modulate this process. It is concluded that L2 learners, like native speakers, can make predictions at the level of syntax.
A slowdown or a speedup in response times across experimental conditions can be taken as evidence of online deployment of knowledge. However, response-time difference measures are rarely evaluated on their reliability, and there is no standard practice to estimate it. In this article, we used three open data sets to explore an approach to reliability that is based on mixed-effects modeling and to examine model criticism as an outlier treatment strategy. The results suggest that the model-based approach can be superior but show no clear advantage of model criticism. We followed up these results with a simulation study to identify the specific conditions in which the model-based approach has the most benefits. Researchers who cannot include a large number of items and have a moderate level of noise in their data may find this approach particularly useful. We concluded by calling for more awareness and research on the psychometric properties of measures in the field.
This study examined the acquisition of the non-sibilant anterior fricatives /v, θ, ð/ by adult second language (L2) English talkers. Twenty-four Mandarin Chinese-L2 English talkers read aloud fricative-initial words. These talkers were chosen as their L1 contained /f/ but not /v, θ, ð/. Twenty L1 English listeners were asked to identify the L2-produced speech and rate the talker’s accent. On average, 69% of the fricatives were correctly identified. /v/ was the most difficult to correctly identify and was identified less accurately than /θ/ and /ð/. A ‘moderate’ accent was reported by L1 listeners, but accent rating did not predict L1 identification behavior. An exploratory acoustic analysis involving the correctly identified words from 22 talkers revealed that L2 talkers produced mean temporal differences used for voicing in line with published L1 data. Non-sibilant fricatives – particularly /v/ – may require pedagogical interventions to push L2 talkers off their learning plateau.
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