The Effects of Oral Instructions and Training on the Expansion of Written Language

Abstract

This single-subject experiment explored the effect of oral instructions and training on the expansion of written language using a reversal design. The subject, a twelve-year-old boy who attended a tutorial clinic, wrote about a stimulus picture four times a week during a twelve-week period. Productivity was based on the number of words and sentences used in the composition; the type-token ratio for vocabulary diversity was also charted. During the intervention phases of the experiment, the tutor added oral instructions to write many words and ideas. These additional instructions increased the subject's productivity. As the oral instructions were changed, the number of total words and sentences also changed. When a simple training session was provided prior to the writing of a composition, the subject wrote more adjectives.