References
- Clarke , A. D. B. and Blakemore , C. B. 1961 . Age and perceptual motor transfer in imbeciles . Brit. J. Psychol. , 52 : 125 – 131 .
- Clarke , A. D. B. and Clarke , A. M. 1965 . “ The abilities and trainability of imbeciles ” . In Mental Deficiency , Edited by: Clarke , A. M. and Clarke , A. D. B. London : Methuen & Co. Ltd .
- Clarke , A. D. B. and Cookson , M. 1962 . Perceptual-motor transfer in imbeciles: a second series of experiments . Brit. J. Psychol. , 53 : 321 – 330 .
- Gerstein , R. A. 1949 . A suggested method of analyzing and extending the use of the Bellevue-Wechsler vocabulary responses . J. Consult. Psychol. , 13 : 366 – 374 .
- O'Connor , N. 1965 . “ Learning and mental defect ” . In Mental Deficiency , Edited by: Clarke , A. M. and Clarke , A. D. B. London : Methuen & Co. Ltd .