"Educational media alone do not influence the achievement of students. Researchers who have attempted to demonstrate the superior influence of educational technologies on achievement have been unsuccessful. On the other hand, researchers who have attempted to identify the appropriate techniques of message organization and the correct process of instructional delivery with technology have been more in the mainstream of what is considered appropriate." (Thompson, Simonson, and Hargrave, 1991, p. 1). Thompson et al.' s ( 1991) assertion supports that of Perraton (1987), who argued that communication media do not differ in their educational effectiveness.