PRESCHOOL TEACHERS AND SUPPORT STAFF’S EXPERIENCES IN USING ASSISTIVE TECHNOLOGY IN SERVING PRESCHOOL CHILDREN WITH DISABILITIES: A CASE STUDY By DEBORAH EMEFA TAMAKLOE A dissertation submitted in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY WASHINGTON STATE UNIVERSITY Department of Teaching and Learning MAY 2015 © Copyright by DEBORAH EMEFA TAMAKLOE, 2015 All Rights Reserved