Visos an Assistive Computer Based Testing (CBT) in The Examination of the Visually Impaired In Nigeria

The purpose of this study is to develop VISOS, an online computer-based testing platform for the examination of the visually impaired in Nigeria. The visually impaired have not been so fortunate to be reaping the benefits that come with the utilization of computer-based testing for examination in Africa and Nigeria. The mode of doing their exam has always been paper and pencil with the help of a scribe or examiner reading to them and helping them to put down their responses or the students put it down via typewriter and braille. Many pieces of literature were reviewed but narrowed down to a few contributions in Africa and Nigeria. Incorporated into VISOS are Voice recognition and Text-to-speech technology which aid the visually impaired to do the exam on their own without any assistance. An earpiece and the activated microphone of the engaged computer are needed for quality interaction.