Abstract: Wechsler Adult Intelligence Scale (WAIS) has been widely used inEnglish speaking countries and revised in many other languages.In China,we are also in need of such a scale for estimation or determinationof intelligence levels of adults.We started in 1979 to have WAIS revised soas to make its various contents useful and applicable to Chinese subjectsliving in urban districts or countrysides.The revision work was completedin 1981.In order to avoid confusion with the works of others we call ourrevision "WAIS-RC". Altogether we investigated 2029 urban subjects and 992 persons in ruralareas scattered in 21 different provinces of China.A stratified sampling planwas adopted to insure that representative proportions of various age,sex,education and occupation would be included in the standardization sample.And,Two separate norms,the urban and the rural,were made. The reliability and validity of WAIS-RC should be mentioned,for theformer,three testing methods are:(1) A split-half procedure (odd vs.evenitems)——the result scores of each half are against the other compared;(2)The intercorrelations of eleven WAIS-RC tests are calculated;and (3)Testand retest——1—5 weeks later a second test is appended to the same subjectand the scores of the tests at different times are compared.The reliablity ofWAIS-RC has been well proved through these methods.As to the validity,two points are very distinguishing;(1) in our records,the higher theedcational accomplishments of our subjects,the better the test scores,(2)the more the subjects approach old age,the lower their test scores.Theseare in good agreement with one's general experiences.Hence,the validityof WAIS-RC is also well proven.

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