This study is a validation of the LENA system for the Italian language. In Study 1, to test LENA's accuracy, seventy-two 10-minute samples extracted from daylong LENA recordings were manually transcribed for 12 children longitudinally observed at 1;0 and 2;0. We found strong correlations between LENA and human estimates in the number of Adult Word…

The purpose of this paper is (1) to report on the design of the early writing observational writing rubric designed to observe and describe change over time in the writing of children emerging into conventional literacy (ages 6-7) within an instructional setting and (2) to investigate the initial reliability and validity of the rubric. We used an…

A validation study of five checklists for assessing two-year-olds' word production revealed that the lists produced comparable mean production scores, reflected age differences, and preserved individual differences in total production and in production of linguistic categories such as nouns, verbs, open class items, and closed class items.…

Analysis of data from studies investigating the effectiveness of a parent report form for assessing children's early language development showed that the vocabulary checklist had substantial validity, and that it helped parents to provide a valuable overall evaluation of their children's language at 20 months. (Author/CB)

Thirty-six children, aged four-five, completed four vocabulary measures: Peabody Picture Vocabulary Test-Revised, Picture Vocabulary subtest of the Test of Oral Language Development, Expressive One-Word Picture Vocabulary Test, and Receptive One-Word Picture Vocabulary Test. Only moderate correlations were found among these tests, implying that a…

Examined open-ended production tasks in higher level testing in French-as-a-second-language courses in the United Kingdom. The article studied the effect of teachers' linguistic background, training, experience, and ability on their marking of students' oral language tests; the reliability of marking criteria; and the validity of assessing…

The book is designed to help language teachers write better tests, taking the view that test construction is an exercise in problem-solving, with every teaching situation presenting a different problem that an understanding of the underlying principles of testing can help solve. Examples are given from testing of English as a Second Language…

Provides a detailed analysis of techniques used for second language vocabulary assessment and the implied assumptions about the underlying construct of vocabulary knowledge. The article notes that existing measures of vocabulary size are uninformative as to the depth of knowledge that learners have about particular words. (56 references)…