Abstract
This article describes research conducted in the early 1970s on the comparative efficiency of an electronic teaching system for programmed instruction (the BRAILLOPHON) and a conventional brailled book program for teaching blind students to spell. The results indicated that the BRAILLOPHON was significantly more efficient as a teaching device than the book program. Furthermore, among 40 students who used the BRAILLOPHON, those in the lowest IQ range made greater percentage learning gains than did those with higher IQs and compensated for deficiencies in learning abilities by extending the time required to complete the program.
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