experience indicating that the wech

experience indicating that the wechsler type of measure is appropriate for older subjects and increased need for gerontological information made the extension of the WAIS norms to the higher age ranges desirable. While the national WAIS standardization was being conducted,the committee on human development of the university of Chicago was engaged in a large -scale,long-rang ,socio-psychological study of older persons .In this project an adequate sample of individuals appropriate for the WAIS standardization could be made available for testing . The cooperation of the Committee made possible the desired extension of WAIS norms to the aged by coordination of WaiS research with the sociological study