Performance of institutional retardates on standard and new forms of the Quick Test.

121 institutionalized mentally retarded patients were tested on Forms 1-3 and 4-6 of the Quick Test; IQs were correlated with other IQs available from institution records. The forms of the Quick Test correlated significantly with the more traditional and time-consuming tests of intellectual performance. It was concluded that the Quick Test is an excellent tool for experimenters and educators who need an efficient and reliable estimate of intellectual development.