Theses and Dissertations - UTB/UTPA

Date of Award


Document Type


Degree Name

Master of Education (MEd)


Special Education

First Advisor

Dr. Marie Simonsson

Second Advisor

Dr. Jo Ann Mitchell Burns

Third Advisor

Dr. Laura Saenz


This was a single subject study with the A-B-A-B across settings withdrawal design. This design was selected because the subject has comorbidity issues, Attention Deficit Hyperactive Disorder (ADHD) and Mental Retardation (MR). This researcher implemented the A-B-A-B design and collected data during all four phases. The subject was a eight year old Hispanic female diagnosed as ADHD and mild MR. ADHD is characterized by impulsivity, lack of ability to focus attention, and hyperactivity. MR is characterized by below average intellectual functioning which significantly limits functioning in at least two skill areas.


Copyright 2003 Amy Sharon Ellison-Marino. All Rights Reserved.

Granting Institution

University of Texas-Pan American