Researchers at University of the Free State in Bloemfontein, South Africa, compared the progress of 18 dyslexic students who were given instruction using Davis Dyslexia Correction techniques with a control group of students from the same school. They reported that over a period of nine months, the Davis students performed significantly better on tests of word recognition skills and spelling than a control group of students taught with phonological strategies.
Abigail Marshall’s summary about South African Researchers Report Reading Success with Davis Methods can be read here.