DELV Development History
The University of Massachusetts Working Groups on AAE was awarded a six-year multi-million dollar NIH contract in 1998 to develop a standardized language assessment tool that distinguished between variations of mainstream American English and actual speech or language disorders. Offering extensive experience in child language development from Communication Disorders, Linguistics, and Psychology, Drs Harry Seymour, Tom Roeper, Jill de Villiers, with contributions from Peter de Villiers, were the lead researchers on the project.
The UMass Working Groups on AAE collaborated with Pearson in the development and publication of DELV.
According to Dr. Harry Seymour, the relationship between Pearson and the UMass Research team, “brings together an exceptionally qualified group to develop a valid and reliable instrument to test speech and language disorders in African-American children.”
For more in-depth understanding of the development goals and to read more about the parties involved in the process, click on any of the following links:
NIH Contract NO1-DC8-2104
AAE UMass Newsletter
Pearson 2003 Press Release (PDF - 90kb)
DELV Product Support Materials
For additional information regarding the research, development, administration, and interpretation, click on any of the resources below…
DELV vs CELF-4 (PDF - 13kb)
Posters and Presentations
References (PDF - 115kb)
To remain current with language assessment research and to understand the direction the profession is moving, take advantage of these convenient ASHA resources….
Students and Professionals Who Speak English With Accents and Nonstandard Dialects: Issues and Recommendations Technical Report
ASHA Joint Subcommittee of the Executive Board on English Language Proficiency
Difference or deficit in speakers of African American English: What every clinician should know…and do
Dr. Linda M. Bland-Stewart, in the May 3, 2005 issue of ASHA Leader
For more information on ASHA, click here to access its website.
Customer Testimonial about DELV
“ I’ve never found an assessment tool like DELV. This is the only commercially available instrument that looks at the non-contrastive shared language features of children.”
Diagnostician, Speech/Language Programs- Tampa, FL