1. Introduction and Overview. 2. Detecting Influential Observations and Outliers. 3. Detecting and Assessing Collinearity. 4. Applications and Remedies. 5. Research Issues and Directions for Extensions. Bibliography. Author Index. Subject Index.

Regression Diagnostics: Identifying Influential Data and Sources of Collinearity

The study reported here examines the English language knowledge and performance of bilingual school children of Middle School age in Britain, in particular their acquisition and use of vocabulary. One of the chief premises of the research is that pupils from bilingual minority ethnic backgrounds suffer a major disadvantage while learning from the National Curriculum because they lack the necessary richness of word knowledge, accompanied by the conceptual frameworks expected in learning subjects such as science and geography. Furthermore, it is believed that by raising awareness among teachers and by the adoption of appropriate methods of vocabulary teaching founded on research, the vocabulary learning of bilingual pupils can be greatly increased. The aim of the study is to identify, describe and evaluate methods of vocabulary instruction currently used and to provide recommendations for suitable methods to be introduced. By means of an action research methodology implemented in a middle school, and with the joint participation of some members of staff and some pupils, classroom data was collected over a two and a half year period from teachers of science, geography and English and their pupils, supplemented with semi-structured interviews with teachers and support staff and conversations with children. These data provided material for a detailed analysis of exactly how individual words develop from first introduction into the pupils’ active vocabulary.

Teaching and Learning Vocabulary

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Learning Vocabulary In Another Language

自然界和人类社会中存在着大量的中间状态，人类的语言也是如此。大多数人在出生后首先习得和掌握的是他的母语（mother tongue），在以后的人生中，会有机会学习第二语言（secongd language）或目的语（target language）。所谓中介语是指第二语言学习者建构起来的介于母语和目的语之间的过渡性语言，它处于不断的发展变化过程中，并逐渐向目的语靠近。

中介语（interlanguage）初探

Understanding second language acquisition

The increasing number of experimental studies on second language (L2) processing, frequently with English as the L2, calls for a practical and valid measure of English vocabulary knowledge and proficiency. In a large-scale study with Dutch and Korean speakers of L2 English, we tested whether LexTALE, a 5-min vocabulary test, is a valid predictor of English vocabulary knowledge and, possibly, even of general English proficiency. Furthermore, the validity of LexTALE was compared with that of self-ratings of proficiency, a measure frequently used by L2 researchers. The results showed the following in both speaker groups: (1) LexTALE was a good predictor of English vocabulary knowledge; 2) it also correlated substantially with a measure of general English proficiency; and 3) LexTALE was generally superior to self-ratings in its predictions. LexTALE, but not self-ratings, also correlated highly with previous experimental data on two word recognition paradigms. The test can be carried out on or downloaded from www.lextale.com.

/pdf/introducing-lextale-a-quick-and-valid-lexical-test-for-22scifd9tz.pdf

Introducing LexTALE: A quick and valid Lexical Test for Advanced Learners of English

In four experiments, we investigated how cross-linguistic overlap in semantics, orthography, and phonology affects bilingual word recognition in different variants of the lexical decision task. Dutch-English bilinguals performed a language-specific or a generalized lexical decision task including words that are spelled and/or pronounced the same in English and in Dutch and that matched one-language control words from both languages. In Experiments 1 and 3, “false friends” with different meanings in the two languages (e.g.,spot) were presented, whereas in Experiments 2 and 4 cognates with the same meanings across languages (e.g.,film) were presented. The language-specific Experiments 1 and 2 replicated and qualified an earlier study (Dijkstra, Grainger, & Van Heuven, 1999). In the generalized Experiment 3, participants reacted equally quickly on Dutch-English homographs and Dutch control words, indicating that their response was based primarily on the fastest available orthographic code (i.e., Dutch). In Experiment 4, cognates were recognized faster than English and Dutch controls, suggesting coactivation of the cognates’ semantics. The nonword results indicate that the bilingual rejection procedure can, to some extent, be language specific. All results are discussed within the BIA+ (bilingual interactive activation) model for bilingual word recognition.

/pdf/recognizing-cognates-and-interlingual-homographs-effects-of-3gxmiaewzu.pdf

Recognizing cognates and interlingual homographs: effects of code similarity in language-specific and generalized lexical decision.

Many studies have reported that word recognition in a second language (L2) is affected by the native language (L1). However, little is known about the role of the specific language combination of the bilinguals. To investigate this issue, the authors administered a word identification task (progressive demasking) on 1,025 monosyllabic English (L2) words to native speakers of French, German, and Dutch. A regression approach was adopted, including a large number of within- and between-language variables as predictors. A substantial overlap of reaction time patterns was found across the groups of bilinguals, showing that word recognition results obtained for one group of bilinguals generalize to bilinguals with different mother tongues. Moreover, among the set of significant predictors, only one between-language variable was present (cognate status); all others reflected characteristics of the target language. Thus, although influences across languages exist, word recognition in L2 by proficient bilinguals is primarily determined by within-language factors, whereas cross-language effects appear to be limited. An additional comparison of the bilingual data with a native control group showed that there are subtle but significant differences between L1 and L2 processing.

http://lextale.com/pdf/Lemhofer_et_al_2008.pdf

Native language influences on word recognition in a second language: a megastudy.

Research on bilingual word recognition suggests that lexical access is non-selective with respect to language, i.e., that word representations of both languages become active during recognition. One piece of evidence is that bilinguals recognise cognates (words that are identical or similar in form and meaning in two languages) faster than non-cognates. The present study used cognates to investigate whether the non-selective access hypothesis holds also for trilinguals and three languages. Dutch-English-German trilinguals carried out a lexical decision task in their third language (German). The word materials included purely German control words, “double” cognates that overlapped in Dutch and German, but not in English, and “triple” cognates with the same form and meaning in Dutch, German, and English. Faster RTs were found for Dutch-German cognates than for control words, but additionally, “triple” cognates were processed even faster than “double” cognates. The “triple” cognate effect was not influenced ...

Three languages, one ECHO: Cognate effects in trilingual word recognition

We investigate the origin of differences in the word frequency effect between native speakers and second-language speakers. In a large-scale analysis of English word identification times we find that group-level differences are fully accounted for by the individual language proficiency scores. Furthermore, exactly the same quantitative relation between word frequency and proficiency is found for monolinguals and three different bilingual populations (Dutch–English, French–English, and German–English). We conclude that the larger frequency effects for second-language processing than for native-language processing can be explained by within-language characteristics and thus need not be the consequence of “being bilingual” (i.e., a qualitative difference). More specifically, we argue that language proficiency increases lexical entrenchment, which leads to a reduced frequency effect, irrespective of bilingualism, language dominance, and language similarity.

Kristin Lemhöfer

Papers

Introducing LexTALE: A quick and valid Lexical Test for Advanced Learners of English

Recognizing cognates and interlingual homographs: effects of code similarity in language-specific and generalized lexical decision.

Native language influences on word recognition in a second language: a megastudy.

Three languages, one ECHO: Cognate effects in trilingual word recognition

The word frequency effect in first- and second-language word recognition: a lexical entrenchment account.