You are here

Psychometric Analysis of the Diagnostic Evaluation of Language Variation Assessment

Title: Psychometric Analysis of the Diagnostic Evaluation of Language Variation Assessment.
243 views
277 downloads
Name(s): Petscher, Yaacov M., author
Connor, Carol McDonald, author
Al Otaiba, Stephanie Dent, author
Type of Resource: text
Genre: Text
Issuance: serial
Date Issued: 2012
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: This study investigated the psychometrics of the Diagnostic Evaluation of Language Variation Screening (DELV-S) Assessment using confirmatory factor analysis, item response theory, and differential item functioning (DIF). Responses from 1,764 students in kindergarten through second grade were used in the study, with results indicating that the DELVS is multidimensional and measures syntactic skills and non-word repetition ability. Item response theory suggested that most items were easy and that the measured skills were most reliable for students who had low language abilities. Standardized effect sizes for DIF suggested small differences existed on syntactic skills between white and minority students. Scores were vertically scaled to produce reference tables to assess performance at specific points in time, as well as growth over time.
Identifier: FSU_migr_fcrr-pubs-0002 (IID), 10.1177/1534508411413760 (DOI)
Keywords: DELV-S; language ability; item response theory; DIF effect size; vertical scaling
Note: This version is the author post-print. The final version of this article was published in Assessment for Effective Intervention.
Citation: Petscher, Y., Connor, C.M., & Al'Otaiba, S. (2012). Psychometric analysis of the Diagnostic Evaluation of Language Variation assessment. Assessment for Effective Intervention, 37(4), 244-251. doi: 10.1177/1534508411413760
Subject(s): Education -- Research
Educational evaluation
Links: http://dx.doi.org/10.1177/1534508411413760
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_migr_fcrr-pubs-0002
Owner Institution: FSU
Is Part of Series: FCRR Publications.
Is Part Of: Assessment for Effective Intervention.
Issue: 4, 37

Choose the citation style.
Petscher, Y. M., Connor, C. M. D., & Al Otaiba, S. D. (2012). Psychometric Analysis of the Diagnostic Evaluation of Language Variation Assessment. Assessment For Effective Intervention. Retrieved from http://dx.doi.org/10.1177/1534508411413760