RTI uses cookies to offer you the best experience online. By clicking “accept” on this website, you opt in and you agree to the use of cookies. If you would like to know more about how RTI uses cookies and how to manage them please view our Privacy Policy here. You can “opt out” or change your mind by visiting: http://optout.aboutads.info/. Click “accept” to agree.

Essential elements of the assessment process

Simeonsson, RJ., & Bailey, D. (1988). Essential elements of the assessment process. In TD. Wachs, & R. Sheehan (Eds.), Assessment of Young Developmentally Disabled Children (pp. 25-41). Plenum Press.

Publications Info

To contact an RTI author, request a report, or for additional information about publications by our experts, send us your request.

RTI shares its evidence-based research - through peer-reviewed publications and media - to ensure that it is accessible for others to build on, in line with our mission and scientific standards.

Meet the Experts

Navigate to Don Bailey

Don Bailey

Recent Publications

Article

Developing capacity in identifying cost-effective interventions to prevent and reduce obesity in China

December 2025
Article

US consumer and healthcare professional preferences for combination COVID-19 and influenza vaccines

December 2025
Article

Comparing youth-friendly clinics to the standard of care for adolescent girls and young women in Malawi: A qualitative analysis

December 2025
Article

Patient-reported outcome improvements following scalp hair regrowth among patients with Alopecia Areata: analysis of the ALLEGRO-2b/3 trial

December 2025
Article

Plain language summary of mortality rates of patients with Parkinson’s disease psychosis who were treated either with pimavanserin or with different second-generation (atypical) antipsychotics

December 2025
Article

Missed opportunities: Public health messaging in media coverage of drug seizures

June 2025
Article

Midurethral sling vs onabotulinumtoxina in females with urinary incontinence: The MUSA randomized clinical trial

May 2025
Article

User perceptions of a multilevel mhealth intervention to boost adherence to hydroxyurea in sickle cell disease

May 2025
View All Publications