This study investigated cognitive factors that might influence Chinese EFL learners’ argumentative essay writing in English. The factors that were explored included English (L2) language proficiency, Chinese (L1) writing ability, genre knowledge, use of writing strategies, and working memory capacity in L1 and L2. Data were collected from 136 university students who received a battery of tests in two sessions. The tests consisted of timed essay writing tasks in L1 and L2, post-writing questionnaires for genre knowledge and use of strategies in the writing process, a timed grammaticality judgment task for L2 grammar knowledge, a receptive vocabulary test and a controlled-production vocabulary test for L2 vocabulary knowledge, and working memory span tasks in L1 and L2. Quantitative analyses using correlations, paired-samples t-test, analysis of variance and multiple regression revealed that L2 language proficiency is the most important predictor of L2 writing, followed by genre knowledge and L2 writing strategies. L1 writing ability and working memory capacity have slight impact as explanatory variables for L2 writing performance in the timed essay writing task.

Purpose: Our purpose is to study how language proficiency and cross-cultural adaptation affect ethnically diverse teams in their cross-cultural communication competence. Methodology: The data was collected through six interviews of team members working in a product development project in a multinational company. The interviews were conducted in March of 2012. The data analysis followed an interpretative thematic analysis inspired by Boyatzis (1998). To analyze the data we have utilized some steps of the thematic analysis. With the analysis it was identified that ethnically diverse teams build language proficiency and cross-cultural adaptation. Findings: The findings from this research indicate that cross-cultural adaptation and language proficiency should be considered as important dimensions of cross-cultural communication competence within ethnically diverse teams. Language proficiency remains a challenge for many ethnically diverse teams and should be included in studies related to communication. Employees’ ability to adapt to the current environment and culture has an essential impact on team communication. Research limitations/implications: The research was done in a Multinational company based in Sweden within one team at Electrolux AB, therefore implications from our study may not be applicable to all ethnically diverse teams in Multinational companies globally.

The purpose of this study was to examine the relationship of language learning strategy use and self-efficacy beliefs with language proficiency of the language preparatory school students. Moreover, some demographic characteristics of the participants were analyzed in relation to the proficiency scores of the students. Four hundred eighty nine language preparatory school students from one private university in Ankara were included in the study. Turkish version of Inventory of Strategies for Language Learning and Questionnaire of English Self-Efficacy were given to the participants. Proficiency scores were taken from the proficiency test done to examine their proficiency level at the beginning of the year. Multiple regression analysis was utilized to evaluate data collected. The results indicated that the number of years of English language learning, being abroad, type of high school that they graduated from, self-efficacy for receptive skills, and deep processing strategies predict the English language proficiency scores of the students positively, while memory and rehearsal strategies predict the English language proficiency scores negatively. The research findings were discussed by relying on the previous research findings.

This dissertation consists of three essays in Labor Economics. The first chapter estimates the costs for establishments of hires and separations for a panel of German establishments. The panel records the start and the termination of the employment of all employees in the surveyed establishments, allowing estimation of adjustment costs under different assumptions of how frequently establishments revise their labor demand. Under the assumption that establishments revise their labor demand every month, estimates suggest hiring costs per employee of approximately 5,000 Euros, and costs of separations of 1,000 Euros. Hiring costs vary considerably between skilled (8,000 to 28,000 Euros per hire) and unskilled (4,000 to 8,000 Euros) labor. Spatial aggregation (large establishments) is associated with lower cost estimates, and only monthly adjustment frequencies yield estimates consistent with theoretical predictions. The second chapter analyzes the role of regional ethnic capital - defined as the average years of schooling of ethnic groups - in the educational attainment of young second generation immigrants in Germany using information on naturalization and country of birth in a nationally representative survey. I find evidence for externalities of ethnic capital for ethnic groups. A higher average education of ethnics makes attendance of higher-quality secondary schools more likely. Moreover, the effect is mainly mediated through the ethnic concentration in the region. However, if higher than regional aggregates are used for the measurement of ethnic capital, no externalities are detected. The third chapter analyzes the impact of regional own-ethnic concentration on the language proficiency of immigrants in Germany. It solves the endogeneity of immigrants' location choices by exploiting the fact that guest-workers in Germany after WWII were initially placed by firms and labor agencies. We find a robust negative effect of ethnic concentration on immigrants' language ability. Simulation results of a simultaneous location and learning choice model confirm the presence of the effect and show how immigrants with high learning cost select into ethnic enclaves. Under the counterfactual scenario of a regionally equal distribution of immigrants the share of German-speakers increases only modestly. / text

This mixed-method study investigated how and to what extent direct instruction in Spanish-English translation and interpretation affects the acquisition of academic language proficiency in both English and Spanish by Heritage Language Learners of Spanish (HLLS). The subjects of the quantitative part of the study were 24 participants who were from six high schools with a large number of minority students. These high schools were located in Tucson and Nogales, Arizona. The participants in the qualitative part of the study were six case study students, chosen from the whole group. The participants were enrolled in the 2006 annual 3-week Professional Language Development Program (PLDP), held in July at the University of Arizona. The PLDP's additive teaching translation and interpretation model engaged the participants in learning by not only the novelty of practicing real-life, challenging exercises in class, using their unique cultural and linguistic skills, but also by the dynamic collaborative learning environment. The improvement in the participants' academic language proficiency was assessed through individual interviews of six case study participants, their high school teachers, and the two PLDP instructors.The use of translation and interpretation to improve the HLLS's academic English (and Spanish) stands in stark contrast to the subtractive teaching English-as-a-Second-Language model that promotes English fluency at the expense of the heritage language. The study, therefore, expands research on minority HLL's cultural capital that is not utilized in American education, where limiting the use of bilingual education for English language learners is the norm. The success of the program was demonstrated by the students' newfound appreciation for their heritage language and culture, academic learning, motivation for higher education, and statistically significant gains in Cognitive Academic Language Proficiency (CALP; Cummins, 2000).

Since the inception of the Kentucky Educational Reform Act in 1990, Kentucky has undergone numerous educational changes. Regarding world languages, recent changes include a new state World Language Standard, a K-12 world language program review, and university language proficiency entrance requirements. These changes create an interesting context in which world language educators negotiate their perceptions and pedagogical choices. This study explored the perceptions, influences, and pedagogical choices of one Kentucky world language educator regarding language proficiency and cultural tools of context, standards and assessments. A constructivist framework guided the case study design. Data collection included interviews, observations, and artifact collection and data analyses followed the comparative analysis process (Yin, 1994; Merriam, 1998). Findings suggest that the participant's perceptions of language proficiency reflect characteristics of the communicative competence language proficiency model of Uso-Juan and Martinez-Flor (2008). In addition, the participant's pedagogical choices regarding context, standards and assessments reflect organizational, policy, and personal influences (Grant, 2003) and characteristics of mediated action (Wertsch, 1998). This study highlights the importance of understanding world language educators' perceptions during a time of contextual change and the need for professional development supporting educators’ pedagogical choices.

Many authors have expressed concern regarding the extent of underachievement in mathematics. The role of language proficiency as a causal factor in this underachievement has been neglected. Researchers found sufficient evidence to conclude that language proficiency is related to mathematics achievement. In mathematics, symbolic language fills a dual role: It serves as an instrument of communication and as an instrument of thought by making the representation of mathematical concepts, structures and relationships possible (Esty & Teppo, 1996:45). According to Van Hiele (1988:5), language structure is a critical factor in the progression through the Van Hiele levels from the visual, concrete structures to the abstract structures. In this study, the influence of language proficiency on geometric thinking is investigated. 152 grade 8 and 9 learners completed two tests each. One test measured language proficiency in the learners' mother tongue. The second is a geometric test based on a Mayberry-type Van Hiele test for assessing learners' geometric thinking levels. Language proficiency was taken as the independent variable, and geometric thinking as the dependent variable. In the analysis of the results, the top 25 % and bottom 25% performers in the language proficiency test were chosen. Cohen's (1988) d-value was used to determine if there was a practical significant difference in the performance of the more proficient language learners and the less proficient language learners with respect to each of the first three Van Hiele levels. Results showed a practical significant difference between the performance of the more proficient language learners and the less proficient language learners with respect to each of the first three Van Hiele levels, but also with respect to the geometry test as a whole. In particular, two aspects of language proficiency, namely reading comprehension and vocabulary, appeared to be very strong predictors for geometric thinking on the first three Van Hiele levels (d ≥ 0,8). Key terms for indexing: geometry, geometry learning, mathematics learning, geometric thinking, language, language proficiency, geometry and language, mathematics and language. / Thesis (M.Sc. (Education)--North-West University, Potchefstroom Campus, 2004.

The purpose of this study was to examine the role that the use of subtitling can play as an aid in academic literacy (AL) programmes, particularly against the background of insufficient AL levels at the University of Buea (UB) and elsewhere. Essentially, the study wanted to investigate whether the AL levels of freshmen at UB would improve significantly if they were to be exposed to subtitled popular television programmes (dramas and documentaries) over a period of one academic semester, compared to the AL levels of students who were not exposed to these programmes. The literature survey provided an overview of the field of AL at tertiary level as well as of the use of subtitling in an educational context, clarifying the relevant terminology related to AL, and also investigating other studies that have been done on the benefits of the mode. The survey also investigated the language policy in Cameroon and specifically at UB. Apart from determining whether exposure to subtitled programmes has a positive effect on AL levels, the study also sought to establish which specific areas of AL are improved by exposure to subtitling (if any), and whether the choice of genre (drama or documentary) or the medium of prior learning of participants (English or French) has an impact on AL levels in English. In order to determine the above, the study exposed four test groups enrolled for the UB AL course to popular television programmes over a period of 12 weeks or one academic semester. Two of these groups saw dramas (one with subtitles and the other without) and two saw documentaries (one with subtitles and the other without). A fifth group was used as control group and did not watch any film. The data used was collected from the Test of Academic Literacy Levels (TALL) used as pre-test and post-test, questionnaires, interviews and observations. The study concluded that: 1. In terms of overall improvement, even though there was statistically significant improvement in all test groups (in the case of the weighted data), the improvement of the groups that saw subtitled films was statistically highly significant and had large practical significance. This indicates that the AL levels of the two groups that saw subtitled film improved more than those of the two other groups when compared to the control group. 2. Specific areas of statistically significant AL improvement revealed by the experiment were academic vocabulary, text comprehension and text editing abilities, as a result of exposure to subtitled film (and in certain cases exposure to film without subtitles). 3. The study found no statistically significant difference between the improvement of the two groups that saw subtitled film, indicating that either genre could be used for this purpose. 4. It would also seem that Anglophone and Francophone students benefited equally from exposure to subtitled film. On the basis of these findings, a model was designed for the implementation of subtitling as an integrated aid in AL programmes at tertiary institutions. This model provides for a general and specific integration of subtitled audiovisual material. The former has been used successfully in this study at UB, and it should be possible to make use of the general application of this model with similar levels of success at other tertiary institutions. The use of the latter (applying the model for specific integration) focuses on institutions with discipline-based AL interventions or specific AL purposes. It is important, however, that the model proposed in this study is further refined by ongoing research on its implementation. / Thesis (Ph.D. (Lanuage Practice))--North-West University, Vaal Triangle Campus, 2010.

The purpose of this study was to examine the role that the use of subtitling can play as an aid in academic literacy (AL) programmes, particularly against the background of insufficient AL levels at the University of Buea (UB) and elsewhere. Essentially, the study wanted to investigate whether the AL levels of freshmen at UB would improve significantly if they were to be exposed to subtitled popular television programmes (dramas and documentaries) over a period of one academic semester, compared to the AL levels of students who were not exposed to these programmes. The literature survey provided an overview of the field of AL at tertiary level as well as of the use of subtitling in an educational context, clarifying the relevant terminology related to AL, and also investigating other studies that have been done on the benefits of the mode. The survey also investigated the language policy in Cameroon and specifically at UB. Apart from determining whether exposure to subtitled programmes has a positive effect on AL levels, the study also sought to establish which specific areas of AL are improved by exposure to subtitling (if any), and whether the choice of genre (drama or documentary) or the medium of prior learning of participants (English or French) has an impact on AL levels in English. In order to determine the above, the study exposed four test groups enrolled for the UB AL course to popular television programmes over a period of 12 weeks or one academic semester. Two of these groups saw dramas (one with subtitles and the other without) and two saw documentaries (one with subtitles and the other without). A fifth group was used as control group and did not watch any film. The data used was collected from the Test of Academic Literacy Levels (TALL) used as pre-test and post-test, questionnaires, interviews and observations. The study concluded that: 1. In terms of overall improvement, even though there was statistically significant improvement in all test groups (in the case of the weighted data), the improvement of the groups that saw subtitled films was statistically highly significant and had large practical significance. This indicates that the AL levels of the two groups that saw subtitled film improved more than those of the two other groups when compared to the control group. 2. Specific areas of statistically significant AL improvement revealed by the experiment were academic vocabulary, text comprehension and text editing abilities, as a result of exposure to subtitled film (and in certain cases exposure to film without subtitles). 3. The study found no statistically significant difference between the improvement of the two groups that saw subtitled film, indicating that either genre could be used for this purpose. 4. It would also seem that Anglophone and Francophone students benefited equally from exposure to subtitled film. On the basis of these findings, a model was designed for the implementation of subtitling as an integrated aid in AL programmes at tertiary institutions. This model provides for a general and specific integration of subtitled audiovisual material. The former has been used successfully in this study at UB, and it should be possible to make use of the general application of this model with similar levels of success at other tertiary institutions. The use of the latter (applying the model for specific integration) focuses on institutions with discipline-based AL interventions or specific AL purposes. It is important, however, that the model proposed in this study is further refined by ongoing research on its implementation. / Thesis (Ph.D. (Lanuage Practice))--North-West University, Vaal Triangle Campus, 2010.

Many authors have expressed concern regarding the extent of underachievement in mathematics. The role of language proficiency as a causal factor in this underachievement has been neglected. Researchers found sufficient evidence to conclude that language proficiency is related to mathematics achievement. In mathematics, symbolic language fills a dual role: It serves as an instrument of communication and as an instrument of thought by making the representation of mathematical concepts, structures and relationships possible (Esty & Teppo, 1996:45). According to Van Hiele (1988:5), language structure is a critical factor in the progression through the Van Hiele levels from the visual, concrete structures to the abstract structures. In this study, the influence of language proficiency on geometric thinking is investigated. 152 grade 8 and 9 learners completed two tests each. One test measured language proficiency in the learners' mother tongue. The second is a geometric test based on a Mayberry-type Van Hiele test for assessing learners' geometric thinking levels. Language proficiency was taken as the independent variable, and geometric thinking as the dependent variable. In the analysis of the results, the top 25 % and bottom 25% performers in the language proficiency test were chosen. Cohen's (1988) d-value was used to determine if there was a practical significant difference in the performance of the more proficient language learners and the less proficient language learners with respect to each of the first three Van Hiele levels. Results showed a practical significant difference between the performance of the more proficient language learners and the less proficient language learners with respect to each of the first three Van Hiele levels, but also with respect to the geometry test as a whole. In particular, two aspects of language proficiency, namely reading comprehension and vocabulary, appeared to be very strong predictors for geometric thinking on the first three Van Hiele levels (d ≥ 0,8). Key terms for indexing: geometry, geometry learning, mathematics learning, geometric thinking, language, language proficiency, geometry and language, mathematics and language. / Thesis (M.Sc. (Education)--North-West University, Potchefstroom Campus, 2004.