A Study by Means of Analysis of Structure of Covariunce, on Factors which Affect Japanese Language Acquisition and Mother Tongue Maintenance of Children from Overseas-an Integral Study of Cognitive Linguistic / Affective / Socio Cultural Factors-

本研究以有机整体范式为基础。这一范式的目的是将语言习得研究、语言维持研究和双语研究有机地结合起来，并对这三个学科领域有一个整体的理解。该范式将语言发展视为一个有机整体，在语言习得和语言维持之间的互动中成长。在此基础上，本研究采用了将语言习得、维持和语际关系作为一个有机整体的分析范式(L的阿米范式)。本研究发现，特定的因素对三种语言的发展都有不同程度的影响：例如，当父母对母语(L1)和文化保持积极的态度，并且孩子的L1水平已经清除临界点时，父母态度的影响是明显的：L。L1和L2之间实现了相互依赖。2.虽然态度侧重于L1维护，但L2习得也不错。3.L1维护性好。4.为了实现上述效果，必须清除L1级别中的一个临界点。

The present study is based on the Organic Wholeness Paradigm. The aim of this paradigm is organic integration of studies in language acquisition, studies in language maintenance, and studies in bilingualism, as well as a holistic understanding of these three disciplinary areas. This paradigm sees language development as an organic whole which grows through interactions between language acquisition and language maintenance. Based on this, this study adopts a paradigm of analysis that integrates language acquisition, maintenance and interlingual relationship as an organic whole (L'AMI paradigm).Previous studies have investigated factors influencing acquisition and maintenance separately. The present study has shown tile influence of specific factors on all three kinds of language development : e. g. When parents have an attitude of active maintenance of the mother tongue (L1) and culture, and the child's Ll proficiency level has cleared the critical point, the following kinds of effects from the parental attitude are evident : l. Interdependence is realized between Ll and L2. 2. Although the attitude focuses on L1 maintenance, L2 acquisition is also good. 3. L1 maintenance is good. 4. In order for the effects above listed to be realized, a critical point in L1 level must be cleared.