The major objective of this study was to compare the effects of two modalities of instruction and testing--aural and visual. Other considerations were sex differences in achievement and the exploration of a relationship between sex identity and achievement. The eighth grade boys and girls of average intelligence who participated in this study…

A random sample and a sample of retarded readers were selected from fourth- and sixth-grade students in the Grand Prairie Independent School District. All students were tested in the areas of auditory perception, visual perception, and phonics abilities. The tests administered were: two subtests from the Woodcock Reading Mastery Test; four…