Owing to the almost lack of a national research on psychological testing for the evaluation of blind people, a psychometric study has been developed with the WISC-III and WAIS-III verbal scales. After adaptations in stimuli and instructions, scales were applied to 120 children and 52 adults in Belo Horizonte MG Brazil. Results show that modified verbal scales had a good internal consistency (alpha > 0.80) and the factorial analysis clearly indicated the presence of a single principal component. Actually it explains a total of 81% and 64% for WISC III and WAIS III respectively. Since adaptations do not affect the factorial structure of the above-mentioned scales, professionals may use the modified scales to measure the intelligence of blind people.
WISC-III; WAIS-III; blind people
