Vocabulary learning is an incremental process. Vocabulary knowledge, especially for second-language learners, may develop across a lifetime. Teachers with experience in providing feedback on their students' vocabulary use in writing or speech might have noticed that it is sometimes difficult to pinpoint one aspect of word knowledge. The reason is…

The purposes and methods of testing in bilingual and English-as-a-Second-Language (ESL) education are discussed. Different instruments, including specific published tests, are listed and described briefly. They include language proficiency assessments, achievement tests, and assessments in special education. Introductory sections address topics…