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Canadian study finds ELLs performed better in grammar

A large Canadian study found that English Language Learners (ELLs) performed

better on grammar items in a standardized test than students who were English

speakers (L1). But, ELLs' performance on vocabulary items on the Ontario

Secondary School Literacy Test (OSSLT) was below that of L1 students,

emphasizing the importance of vocabulary instruction for ELLs, reports a study

in the journal, Language Learning.

"Students who were taught English as a second or foreign language in a

classroom setting might have had intensive grammar instruction," the authors

explain, "whereas students who acquired English as a L1 in a natural setting

might not have had the opportunity to receive such focused instruction in

grammar."

The Grade 10 ELLs who took the OSSLT, a high-stakes test required for

graduation, also performed better on items that called for integrated reading

and writing, the study reports. However, the researchers said that finding

raises more questions than it answers. They speculate that the 3-level rating

scale used to evaluate integrated reading and writing might not be

detailed enough to discriminate among students with different abilities.

ELLs in Canada have a 51% success rate on the OSSLT compared with 84% for

native English-speaking peers, according to the journal. The researchers

examined differential item functioning (DIF) by identifying bundles of items

that evaluated primarily grammar, vocabulary or integrated writing and reading.

Six constructed response items and 48 multiple-choice items were included for

analysis in the study. The study was based on test results for 1,969 L1 students

and 3,675 ELLs (excluding French-speaking students).

"The fact that the ELL students were not as good as the L1 students on

vocabulary items should indicate to classroom teachers or curriculum developers

that this student population needs a remedial class to improve vocabulary

knowledge," the researchers write.

"Differential Functioning of Reading Subskills on the OSSLT for L1 and

ELL Students: A Multidimensionality Model-Based DBF/DIF Approach", by Youn-Hee

Kim and Eunice Eunhee Jeng, Language Learning, December 2009, Volume 59, Number

4, pp. 825-865.

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