References
- Barlow, D., Hayes, S. & Nelson, R. (1984). The scientist-practitioner: Research and accountability in clinical and educational settings. New York: Pergamon Press.
- Bonvillian, J. & Nelson, K. (1976). Sign language aquisition in a mute autistic boy. Journal of Speech and Hearing Disorders, 41, 339–347
- Bricker, D. (1972). Imitative sign training as a facilitator of word-object association with low-functioning children. American Journal of Mental Deficiency, 76, 509–516
- Browder, D., Morris, W. & Snell, M. (1981). Using time delay to teach manual signs to a severely retarded student. Education and Training of the Mentally Retarded, 16
- Doherty, J. (1985). The effects of sign characteristics on sign acquisition and retention: An integrative review of the literature. Augmentative and Alternative Communication, 1, 108–121
- Fagley, N. (1985). Applied statistical power analysis in the interpretation of nonsignificant results by research consumers. Journal of Counselling Psychology, 32, 391–396
- Fouts, R. (1972). Use of guidance in teaching sign language to a chimpanzee (Pan Troglodytes). Journal Comparative and Physiological Psychology, 80, 515–522
- Grinnell, M., Detamore, K. & Lippke, B. (1976). Sign it successful – Manual English encourages expressive communication. Teaching Exceptional Children, 8, 123–124
- Guess, D., Sailor, W. & Baer, D. (1977). A behavioural remedial approach to language training for the severely handicapped. In E. Sontag (Ed.), Educational programming for the severely handicapped. Reston: A Special Publication of the Division on Mental Retardation, Council for Exceptional Children.
- Hodges, P. & Schwethelm, B. (1984). A comparison of the effectiveness of graphic symbol and manual training with profoundly retarded children. Applied Psycholingistics, 5, 5 223–253
- Iacono, T. & Parsons, C. (1986). A comparison of physical shaping and imitation techniques in teaching signs to the intellectually disabled. Manuscript submitted for publication to Augmentative and Alternative Communication.
- Jeanes, R. & Reynolds, B. (1982). Dictionary of Australasian signs for communication with the deaf. Melbourne: Victorian School for Deaf Children.
- Kahn, J. (1981). A comparison of sign and verbal language training with non-verbal retarded children. Journal of Speech and Hearing Research, 46, 113–119
- Karlan, G., Brenn-White, B., Lentz, A., Hodur, P., Egger, D. & Frankoff, D. (1982). Establishing generalized verb-noun phrase usage in a manual language system with moderately handicapped children. Journal of Speech and Hearing Disorders, 47, 31–42
- Kohl, F. (1981). Effects of motoric requirements on the acquisition of manual sign responses by severely handicapped students. American Journal of Mental Deficiency, 85, 396–403
- Kopchick, G., Rombach, D. & Smilovitz, R. (1975). A total communication environment in an institution. Mental Retardation, 13, 22–23
- Kotkin, R., Simpson, S. & DeSanto, D. (1978). The effect of sign language on picture naming in two retarded girls in possession of normal hearing. Journal of Mental Deficiency Research, 22, 19–25
- Linton, J. & Singh, N. (1984). Aquisition of sign language using positive practice overcorrection. Behaviour Modification, 8, 553–566
- McCormick, L. & Schiefelbusch, R. (1984). Augmentative communication. In L. McCormick & R. Schiefelbusch (Eds.), Early language intervention. Columbus: Charles E. Merrill Publishing Company.
- McReynolds, L. & Kearns, K. (1983). Single subject experimental designs in communicative disorders. Baltimore: University Park Press.
- Piaget, J. (1952). The origins of intelligence. London: Routledge and Keagan Paul.
- Reich, R. (1978). Gestural facilitation of expressive language in moderately/severely retarded preschoolers. Mental Retardation, 16, 113–117
- Rittenhouse, R. & Myers, J. (1984). Teaching sign language: The first vocabulary. C. C. Publications Inc.
- Schaeffer, B. (1978). Teaching spontaneous language to non-verbal children: Theory and method. Sign Language Studies, 21, 317–352
- Schaeffer, B., Musil, A. & Kollinzas, G. (1982). Total communications: A signed speech program for nonverbal children. Illinois: Research Press.
- Schepis, M., Reid, D., Fitzgerald, J., Faw, G., van den Pol, R. & Welty, P. (1982). A program for increasing manual signing by autistic and profoundly retarded youth within the daily environment. Journal of Applied Behaviour Analysis, 15, 363–370
- Sinclair, H., (1975). The role of cognitive structure in language aquisition. In E. Lenneberg & E. Lenneberg (Eds.), Foundations of language development: A multidisciplinary approach. (Vol. 1). New York: Academic Press.
- Smeets, P. & Striefel, S. (1976). Acquisition of sign reading by transfer of stimulus control in a retarded deaf girl. Journal of Mental Deficiency Research, 20, 167–205
- Sparrow, S., Balla, D. & Cicchetti, D. (1984). Vineland Adaptive Behaviour Scales: Interview edition survey from manual. Minnesota: American Guidance Service.
- Stremel-Campbell, K., Cantrell, D. & Halle, J. (1977). Manual signing as a language system and as a speech initiator for the non-verbal severely handicapped student. In E. Sontag, J. Smith & N. Certo (Eds.), Educational programming for the severely and profoundly handicapped. Reston: The Division on Mental Retardation.
- Van Biervliet, A. (1977). Establishing words and objects as functionally equivalent through manual sign training. American Journal of Mental Deficiency, 82, 178–186
- Walker, M. (1976). Language programmes for use with the revised Makaton vocabulary. Surrey: Botleys Park Hospital.
- Walker, M. & Armfield, A. (1981). What is the Makaton Vocabularly? Special Education: Forward Trends, 8
- Wilbur, R. (1976). The linguistics of manual language and manual systems. In L. Lloyd (Ed.), Communication assessment and intervention strategies. Baltimore: University Park Press.