The purpose of this thesis is to propose a theory of language acquisition which could serve as a basis for further studies in this area. The thesis is divided into two sections, the first dealing with the psycholinguistic aspects of language and its acquisition, and the second dealing with the activities of the brain which relate to language ability, behavior, and acquisition.

Typescript, etc. / Digitized by Kansas State University Libraries

国立情報学研究所で電子化したコンテンツを使用している。

Call number: LD2668 .T4 1979 D45 / Master of Science

published_or_final_version / Education / Master / Master of Education

published_or_final_version / Education / Doctoral / Doctor of Philosophy

Both long-term language knowledge and language ability affect the efficiency of the working memory system (Kohnert, Windsor, & Yim, 2006; Summers, Bohman, Peña, Bedore, & Gillam, 2009). Models of working memory (Baddeley, 2003; Cowan, 1999; Potter & Lombardi, 1990) account for variations in how memory is used in nonword repetition (NWR) and narrative retell tasks. Use of working memory varies by language ability and language experience. The current study explored the role of working memory, language ability, and language experience on narrative retell in bilingual children. Eighty bilingual first grade children participated in the study and represented a wide range of language abilities as determined by the Bilingual English Spanish Assessment (Peña, Gutiérrez-Clellen, Iglesias, Goldstein & Bedore, in preparation) and a wide range of language experiences. The participants repeated nonwords (Calderón, 2003; Dollaghan & Campbell, 1998) and retold stories in both English and Spanish. Stories were scored based on the percent of key components (KC) that were recalled based on the model story. Results revealed that Ability predicted narrative retells in both English and Spanish. Current language experience also predicted English and Spanish retells. English NWR predicted narrative retell in English only. NWR did not mediate the effect of language ability or language experience on recalling KCs. Yet, English NWR did predict English KCs. These results support memory models that account for memory tasks using longer units of language (Cowan, 1999; Potter & Lombardi, 1990). / text

Thesis (Ph. D.)--University of Wisconsin--Madison, 1970. / Typescript. Vita. Description based on print version record. Includes bibliographical references (leaves 63-65).

This study is a description of the language experiences of English Second Language students in their first year at Rhodes University. It took place in the context of the changes that are currently occurring in higher education in South Africa in terms of student populations. More and more students are entering tertiary education institutions, including HWESUs, such as Rhodes University, who are considered non-traditional. These students typically have English as their second, or additional, language, and have not been adequately prepared for university study by their secondary education. This study describes the experiences of three such students in their first year at Rhodes University. Entry into a university is seen not just as acquiring knowledge, but as entering, or attempting to enter, a new culture. It is recognised that all students enter universities with other cultures or literacies already in place. In the case of non-traditional students tbese other literacies are usually at some distance from those of the university. The work of James Gee (1990) is particularly useful in understanding this process of adjusting to the demands of university study and the effect that previous experiences have on this process. This study is an attempt to discover and describe the literacies that these three students brought with them to university and the effect these literacies had on their attempts to enter academic discourse communities of the university. An ethnographic research method was adopted in order to do this. The study is also an attempt to evaluate, from the perspective of the three students, the appropriacy of the various changes that Rhodes University has made since the numbers of non-traditional students has started to increase.

This thesis analyses the way in which placement testing is being interpreted in Adult Basic Education and Training (ABET). The thesis examines whether the placement tests used in the case study were valid in terms of whether their contents were relevant and authentic with regard to what English second language speakers could reasonably be expected to know. Adult learners have differing English second language knowledge depending on the different contexts in which they have learned their second language. This thesis investigates the implications of the different contexts and different language needs of adult learners for the testing of English as a second language for placement purposes in ABET programmes. The thesis examined two placement tests to determine how the recognition of prior second language learning was being interpreted and how the interpretation affected the validity of the tests. Learners= perceptions of the assessment process and test content were elicited in order to determine whether a policy of transparency had been followed in the implementation of the assessment. It was also established what the goals of the organisation were in implementing an ABET programme. This research suggests that placement testing should be viewed holistically; in other words, the goals of the organisation and the level of transparency affect the validity of the placement test. The conclusions were that the placement tests were inauthentic since their contents excluded certain vital aspects of real life performance, namely, that related to the work context. The research revealed that if the placement testing process and the ABET programme are integrated into the culture of the organisation and if employees are remunerated when they have passed the different levels in the programme, the programme is likely to achieve a fair measure of success. Recommendations are that literacy should be viewed as based on a variety of contexts and uses and that therefore tests should be tailored to suit each particular organisation and should contain workrelated content. Furthermore, multiple methods of assessment should be considered.