The aim of this study was to determine whether schizophrenic patients' impairment in semantic verbal fluency tasks is due to difficulties in organizing their search or, in other words, in organizing output in terms of clusters of meaningfully related words. Consecutive association of words belonging to subcategories of the semantic task was defined as semantic clustering. A categorical verbal fluency task was first administered to 100 healthy subjects and then to 22 schizophrenic patients and 22 healthy subjects matched for sex, age and education. In the normal population, semantic clustering was found to be involved in word generation. A large number of semantic clusters indicated efficient organization of semantic knowledge and led to better word production. Schizophrenic patients showed impaired verbal fluency and generated a smaller number of semantic clusters than the control subjects. These findings point to a defect in self-initiation of semantic categorization in schizophrenia.

Aviation English proficiency is a core competency in the global air traffic controller profession. There is, however, growing concern about the current ineffective paper-based assessment methods and the severe lack of interactive online testing for such a critical profession, one that should be ideally assessed in an authentic task and situation (Alderson, 2010; Douglas, 2013). The tests, which lack validity and authenticity, cannot capture how knowledge of aviation English communication and strategic competence are used through valid means and, therefore, inevitably fail to predict how test takers actually perform in the target language use situations (Douglas, 2000). In the present study, the researcher examines the potential use of verbal report data produced by test takers interacting in a virtual testing environment. The research seeks to answer two specific questions: (a) What types of strategies are used in the virtual aviation English task performance? and (b) How can the assessed strategies be interpreted in relation to test takers’ performance? The analysis of the test takers’ verbal reports from stimulated recalls indicates that various cognitive, metacognitive, and communication strategies were used while performing the Virtual Interactive Tasks for Aviation English Assessment, and that there is a positive relationship between the total number of cognitive and metacognitive strategies adopted and the test scores. The findings suggest that the use of an immersive interface and simulated tasks in a virtual world could provide language learners with more authentic opportunities to perform the target tasks and promote strategic, as well as linguistic, competence.

Chinese noun classifiers are an obligatory category associated with nouns. Studies have shown that achieving a full understanding and good mastery of Chinese noun classifiers is difficult for both young and adult L2 learners. This study examines the learning strategies used by 30 Swedish adults for a period of two months. Their learning results are compared to 30 bilingual children's production of Chinese noun classifiers. The adult learners exhibit a normal top–down learning fashion, in which they fail to acquire the complex semantic and cognitive meanings embedded in the classifiers. The children, on the other hand, apply cognitive strategies with a bottom–up approach. The adults’ learning of classifiers lags surprisingly far behind their general level of Chinese proficiency. This study can be used as a reference for future studies on the conceptual and cognitive aspects of Chinese language acquisition by speakers whose native languages are not classifier languages.