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1.
We investigated language variation and score variation in the testing of English language learners, native Spanish speakers. We gave students the same set of National Assessment of Educational Progress mathematics items in both their first language and their second language. We examined the amount of score variation due to the main and interaction effect of student (s), item (i), rater (r), and language (l). We observed a considerable score variation due to the interaction, s × i × l, which indicates that each item has a unique set of linguistic challenges in each language and each student has a unique set of strengths and weaknesses in each language. Parallel results were obtained with samples of students tested across dialects of their native language. 相似文献
2.
We discuss generalizability (G) theory and the fair and valid assessment of linguistic minorities, especially emergent bilinguals. G theory allows examination of the relationship between score variation and language variation (e.g., variation of proficiency across languages, language modes, and social contexts). Studies examining score variation across items administered in emergent bilinguals' first and second languages show that the interaction of student and the facets (sources of measurement error) item and language is an important source of score variation. Each item poses a unique set of linguistic challenges in each language, and each emergent bilingual individual has a unique set of strengths and weaknesses in each language. Based on these findings, G theory can inform the process of test construction in large-scale testing programmes and the development of testing models that ensure more valid and fair interpretations of test scores for linguistic minorities. 相似文献
3.
Guillermo Solano-Flores 《教育实用测度》2014,27(4):236-247
This article addresses validity and fairness in the testing of English language learners (ELLs)—students in the United States who are developing English as a second language. It discusses limitations of current approaches to examining the linguistic features of items and their effect on the performance of ELL students. The article submits that these limitations stem from the fact that current ELL testing practices are not effective in addressing three basic notions on the nature of language and the linguistic features of test items: (a) language is a probabilistic phenomenon, (b) the linguistic features of test items are multidimensional and interconnected, and (c) each test item has a unique set of linguistic affordances and constraints. Along with the limitations of current testing practices, for each notion, the article discusses evidence of the effectiveness of several probabilistic approaches to examining the linguistic features of test items in ELL testing. 相似文献
4.
Maria Martiniello 《Educational Assessment》2013,18(3-4):160-179
This article examines nonmathematical linguistic complexity as a source of differential item functioning (DIF) in math word problems for English language learners (ELLs). Specifically, this study investigates the relationship between item measures of linguistic complexity, nonlinguistic forms of representation and DIF measures based on item response theory difficulty parameters in a state fourth-grade math test. This study revealed that the greater the item nonmathematical lexical and syntactic complexity, the greater are the differences in difficulty parameter estimates favoring non-ELLs over ELLs. However, the impact of linguistic complexity on DIF is attenuated when items provide nonlinguistic schematic representations that help ELLs make meaning of the text, suggesting that their inclusion could help mitigate the negative effect of increased linguistic complexity in math word problems. 相似文献
5.
Sultan Turkan 《International Journal of Science Education》2013,35(15):2343-2369
The performance of English language learners (ELLs) has been a concern given the rapidly changing demographics in US K-12 education. This study aimed to examine whether students' English language status has an impact on their inquiry science performance. Differential item functioning (DIF) analysis was conducted with regard to ELL status on an inquiry-based science assessment, using a multifaceted Rasch DIF model. A total of 1,396 seventh- and eighth-grade students took the science test, including 313 ELL students. The results showed that, overall, non-ELLs significantly outperformed ELLs. Of the four items that showed DIF, three favored non-ELLs while one favored ELLs. The item that favored ELLs provided a graphic representation of a science concept within a family context. There is some evidence that constructed-response items may help ELLs articulate scientific reasoning using their own words. Assessment developers and teachers should pay attention to the possible interaction between linguistic challenges and science content when designing assessment for and providing instruction to ELLs. 相似文献
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7.
English language learners (ELLs) are the fastest growing subgroup in American schools. These students, by a provision in the reauthorization of the Elementary and Secondary Education Act, are to be supported in their quest for language proficiency through the creation of systems that more effectively measure ELLs’ progress across years. In the past, ELLs’ progress has been based on students’ prior scores measuring the same construct. To disentangle effectiveness from achievement, the reporting has generally targeted mean-group activity. In contrast, student growth percentiles (SGPs) provide a comparison of students’ growth with others who have the same achievement score history. By examining the construct measured by an English language proficiency test as manifested in student scores in Speaking, Listening, Reading and Writing, this article outlines the use of SGPs in providing information on how much each student needs to grow, which will allow educators to more effectively apply differential formative instructional strategies. 相似文献
8.
We review empirical research on English language learners (ELLs) who struggle with reading and who may have learning disabilities (LD). We sought to determine research indicators that can help us better differentiate between ELLs who struggle to acquire literacy because of their limited proficiency in English and ELLs who have actual LD. We conclude that more research is warranted to further elucidate the strengths and learning needs of subgroups of underachieving ELLs, to help us determine who should qualify for special education, and to clarify why some ELLs who do not have LD still struggle with language and literacy acquisition. Future research should account for the complexities involved in becoming literate in another language and focus more on cultural and contextual factors that affect student achievement. 相似文献
9.
Kadriye Ercikan Wolff-Michael Roth Marielle Simon Debra Sandilands Juliette Lyons-Thomas 《教育实用测度》2014,27(4):273-285
Diversity and heterogeneity among language groups have been well documented. Yet most fairness research that focuses on measurement comparability considers linguistic minority students such as English language learners (ELLs) or Francophone students living in minority contexts in Canada as a single group. Our focus in this research is to examine the degree to which measurement comparability, as indicated by differential item functioning (DIF), is consistent for sub-groups among linguistic minority Francophone students in Canada. The findings suggest that the linguistic minority Francophone students who speak French at home and those who do not speak French at home should not be grouped together for investigating measurement comparability or for examining performance gaps. We identified a great degree of differences in DIF identification with a consistency of 7–10% in DIF identification in the separate analyses for the two groups. The findings highlight methodological problems with investigating fairness for diverse linguistic groups that are treated as a single group. 相似文献
10.
The use of accommodations has been widely proposed as a means of including English language learners (ELLs) or limited English proficient (LEP) students in state and districtwide assessments. However, very little experimental research has been done on specific accommodations to determine whether these pose a threat to score comparability. This study examined the effects of linguistic simplification of 4th- and 6th-grade science test items on a state assessment. At each grade level, 4 experimental 10-item testlets were included on operational forms of a statewide science assessment. Two testlets contained regular field-test items, but in a linguistically simplified condition. The testlets were randomly assigned to LEP and non-LEP students through the spiraling of test booklets. For non-LEP students, in 4 t-test analyses of the differences in means for each corresponding testlet, 3 of the mean score comparisons were not significantly different, and the 4th showed the regular version to be slightly easier than the simplified version. Analysis of variance (ANOVA), followed by pairwise comparisons of the testlets, showed no significant differences in the scores of non-LEP students across the 2 item types. Among the 40 items administered in both regular and simplified format, item difficulty did not vary consistently in favor of either format. Qualitative analyses of items that displayed significant differences in p values were not informative, because the differences were typically very small. For LEP students, there was 1 significant difference in student means, and it favored the regular version. However, because the study was conducted in a state with a small number of LEP students, the analyses of LEP student responses lacked statistical power. The results of this study show that linguistic simplification is not helpful to monolingual English-speaking students who receive the accommodation. Therefore, the results provide evidence that linguistic simplification is not a threat to the comparability of scores of LEP and monolingual English-speaking students when offered as an accommodation to LEP students. The study findings may also have implications for the use of linguistic simplification accommodations in science assessments in other states and in content areas other than science. 相似文献
11.
杨焕峥 《宁波职业技术学院学报》2007,11(5):71-73
研究了在汉语方言辨识系统中如何建立合适的语言模型用以提高系统的辨识率。采用了基于统计的语言建模方法,首先把各方言的语音材料转写成音素序列,然后让机器统计方言音素的组配规则,建立各方言的语言模型。结果表明,加入语言模型的辨识系统比仅仅依靠声学模型进行辨识的系统,辨识效果要好得多。 相似文献
12.
Jerome M. Shaw 《科学教学研究杂志》1997,34(7):721-743
In recent years, at the same time that performance assessments in science have become more popular, the number of English language learners (ELLs) (i.e., students whose native language is other than English) served by the U.S. educational system has also increased rapidly. While the research base is growing in each of these areas independently, little attention has been paid to their intersection. This case study of the use of a science performance assessment with 96 ELLs in five high school science classes investigated the face, construct, and consequential validity of this intersection. Qualitative and quantitative data analyses showed that both teachers and students had an overall favorable response to the assessment, although students' English comprehension and expression skills were determining factors for certain items. While most responses were reliably scored, ELL spelling and syntax on certain responses were significant sources of error. The degree of specificity of teachers' guidance also significantly affected students' scores. Recommendations from this study include increasing the clarity of an assessment's design, allowing ELLs more time to complete assessments, and scoring by raters who are knowledgeable about typical patterns in written English for this student population. Furthermore, it is recommended that the use of performance assessments with ELLs be exploratory until such time as their validity and reliability with this population can be more adequately established. J Res Sci Teach 34: 721–743, 1997. 相似文献
13.
Heterogeneity within English language learners (ELLs) groups has been documented. Previous research on differential item functioning (DIF) analyses suggests that accurate DIF detection rates are reduced greatly when groups are heterogeneous. In this simulation study, we investigated the effects of heterogeneity within linguistic (ELL) groups on the accuracy of DIF detection. Heterogeneity within such groups may occur for a myriad of reasons including differential lengths of time residing in English-speaking countries, degrees of exposure to English-speaking environments, and amounts of English instruction. Our findings revealed that at high levels of within-group heterogeneity, DIF detection is at the level of chance, implying that a large proportion of DIF items might remain undetected when assessing heterogeneous populations potentially leading to developing biased tests. Based on our findings, we urge test development organizations to consider heterogeneity within ELL and other heterogeneous focus groups in their routine DIF analyses. 相似文献
14.
Lakeisha Johnson Nicole Patton Terry Carol McDonald Connor Shurita Thomas-Tate 《Reading and writing》2017,30(9):2009-2038
The achievement gaps between poor and more affluent students are persistent and chronic, as many students living in poverty are also members of more isolated communities where dialects such as African American English and Southern Vernacular English are often spoken. Non-mainstream dialect use is associated with weaker literacy achievement. The principal aims of the two experiments described in this paper were to examine whether second through fourth graders, who use home English in contexts where more formal school English is expected, can be taught to dialect shift between home and school English depending on context; and whether this leads to stronger writing and literacy outcomes. The results of two randomized controlled trials with students within classrooms randomly assigned to DAWS (Dialect Awareness, a program to explicitly teach dialect shifting), editing instruction, or a business as usual group revealed (1) that DAWS was more effective in promoting dialect shifting than instruction that did not explicitly contrast home and school English; and (2) that students in both studies who participated in DAWS were significantly more likely to use school English in contexts where it was expected on proximal and distal outcomes including narrative writing, morphosyntactic awareness, and reading comprehension. Implications for theory and practice are discussed. 相似文献
15.
Despite the expectation that all students should achieve high academic standards, content area instruction and English for speakers of other languages instruction for English language learners (ELLs) have traditionally been conceptualized as separate domains, resulting in educational inequities for ELLs. This is because effective instruction to promote academic achievement for ELLs requires integration of content and language. Such inequities are more pronounced in urban schools where ELLs are disproportionately represented. In science education, research on instructional interventions to simultaneously promote science and English proficiency of ELLs has begun to emerge in recent years. Grounded in this emerging research literature, we offer specific instructional strategies to integrate science and English proficiency for ELLs in five domains: (a) literacy strategies with all students, (b) language support strategies with ELLs, (c) discourse strategies with ELLs, (d) home language support, and (e) home culture connections. 相似文献
16.
Several studies have shown that the linguistic complexity of items in achievement tests may cause performance disadvantages for second language learners. However, the relative contributions of specific features of linguistic complexity to this disadvantage are largely unclear. Based on the theoretical concept of academic language, we used data from a state-wide test in mathematics for third graders in Berlin, Germany, to determine the interrelationships among several academic language features of test items and their relative effects on differential item functioning (DIF) against second language learners. Academic language features were significantly correlated with each other and with DIF. While we found text length, general academic vocabulary, and number of noun phrases to be unique predictors of DIF, substantial proportions of the variance in DIF were explained by confounded combinations of several academic language features. Specialised mathematical vocabulary was neither related to DIF nor to the other academic language features. 相似文献
17.
川北隐语作为一种语言变异现象,历经几千年的发展,分化出了较多的下位类型,并广泛存在于歇后语、行话、山歌、谑语之中。本文针对其富有地域特色的歇后语、行话等隐语的语形、语义及成词理据进行了论说和分析,指出隐语的发展演变,是社会多层次言语社团的建立和完善并在语言使用中直接催生的结果。 相似文献
18.
＂遘＂字句是闽语莆仙方言中一个特色句式。本文从＂遘＂字词性及其使用入手,具体分析助词＂遘＂字句的相关格式及其用法,并探讨此句式在福州、厦门等周边闽方言区的使用情况,从而展现莆仙话＂遘＂字句处于过渡性状态的语法特点。 相似文献
19.
Holland W. Banse Natalia A. Palacios Eileen G. Merritt Sara E. Rimm-Kaufman 《The Journal of educational research》2017,110(2):199-208
Teachers of elementary mathematics face multiple, convergent demands. These demands include supporting the growing population of English language learners (ELLs) and facilitating mathematical discussions across relevant curricular contexts. The authors used a comparative case study to examine how two teachers attempt to facilitate discussions while enacting a Calendar Math curriculum, in Grade 4 classrooms with high concentrations (>50%) of ELLs. The authors found that these teachers' use of Calendar Math did not provide a supportive context for conceptually based discussions. However, teachers did support ELLs in mathematical discussions by including display questions, elaborating student responses, modeling the use of mathematical vocabulary use, and use of self-talk. Teachers differed with regard to how often they elaborated responses, used vocabulary, the amount of teacher speech and the length of lessons. We discuss what these practices may mean for ELLs. 相似文献
20.
The development of English language learners (ELLs) was explored from kindergarten through eighth grade within a nationally representative sample of first-time kindergartners (N = 19,890). Growth curve analyses indicated that, compared to native English speakers, ELLs were rated by teachers more favorably on approaches to learning, self control, and externalizing behaviors in kindergarten and generally continued to grow in a positive direction on these social/behavioral outcomes at a steeper rate compared to their native English-speaking peers, holding other factors constant. Differences in reading and math achievement between ELLs and native English speakers varied based on the grade at which English proficiency is attained. Specifically, ELLs who were proficient in English by kindergarten entry kept pace with native English speakers in both reading and math initially and over time; ELLs who were proficient by first grade had modest gaps in reading and math achievement compared to native English speakers that closed narrowly or persisted over time; and ELLs who were not proficient by first grade had the largest initial gaps in reading and math achievement compared to native speakers but the gap narrowed over time in reading and grew over time in math. Among those whose home language is not English, acquiring English proficiency by kindergarten entry was associated with better cognitive and behavioral outcomes through eighth grade compared to taking longer to achieve proficiency. Multinomial regression analyses indicated that child, family, and school characteristics predict achieving English proficiency by kindergarten entry compared to achieving proficiency later. Results are discussed in terms of policies and practices that can support ELL children's growth and development. 相似文献