References
- Beveridge, M. & Mittler, P. (1977). Feedback, language and listener performance in severely retarded children, British Journal of Disorders of Communication, 12, 149–157
- Bowman, S.N. (1984). A review of referential communication skills. Australian Journal of Human Communication Disorders, 12, 93–112
- Brown, R.W. (1973). A first language: The early stages. Cambridge. Mass.: Harvard University Press.
- Friedman, M. (1937). The use of ranks to avoid the assumption of normality implicit in the analysis of variance. Journal of the American Statistical Association, 32, 675–701
- Garmiza, C. & Anisfeld, M. (1976). Factors reducing the efficiency of referent communication in children. Merrill-Palmer Quarterly, 22, 125–136
- Glucksberg, S., Krauss, R. & Higgins, E.T. (1975). The development of referential communication skills. In F. Horowitz (Ed.) Review of child development research. (Volume 4). Chicago: University of Chicago Press.
- Glucksberg, S., Krauss, R.M. & Weisberg, R. (1966). Referential communication in nursery school children: Method and some preliminary findings. Journal of Experimental Child Psychology, 3, 333–342
- Heber, R. (1959). A manual on terminology and classification in mental retardation. American Journal of Mental Deficiency, 64, 1–17
- Hobsbaum, A. & Mittler, P. (1971). Sentence comprehension test: Experimental Edition. Manchester: University of Manchester Press.
- Hoy, E.A. & McKnight, J.R. (1977). Communication style and effectiveness in homogeneous and heterogeneous dyads of retarded children. American Journal of Mental Deficiency, 81, 587–598
- Kamhi, A.G. & Johnston, J.R. (1982). Towards an understanding of retarded children's linguistic deficiencies. Journal of Speech and Hearing Research, 25, 435–445
- Keane, V.E. (1972). The incidence of speech and language problems in the mentally retarded. Mental Retardation, 10, 3–8
- Kossan, N.E. & Markman, E.M. (1981). Referential communication: Effects of listener presence on the performance of young speakers. Merrill-Palmer Quarterly, 27, 307–315
- Leifer, J.S. & Lewis, M. (1984). Acquisition of conversational response skills by young down Syndrome and nonretarded young children. American Journal of Mental Deficiency, 88, 610–618
- Lloyd, P. & Beveridge, M. (1981). Information and meaning in child communication. New York: Academic Press.
- Longhurst, T.M. (1972). Assessing and increasing descriptive communication skills in retarded children. Mental Retardation, 10, 42–45
- Longhurst, T.M. (1974). Communication in retarded adolescents: Sex and intelligence level. American Journal of Mental Deficiency. 78, 607–618
- Longhurst, T.M. & Berry, C.W. (1975). Communication in retarded adolescents: Response to listener feedback. American Journal of Mental Deficiency, 80, 158–164
- Lyle, J.G. (1961). Comparison of the language of normal and imbecile children. Journal of Mental Deficiency Research, 5, 40–50
- Mann, H.B. & Whitney, D.R. (1947). On a test of whether one of two random variables is stochastically larger than the other. The Annals of Mathematical Statistics, 18, 50–60
- Maratsos, M.P. (1973). Nonegocentric communication abilities in preschool children. Child Development, 44, 697–700
- Meline, T. & Meline, N. (1983). Facing a communicative obstacle: Pragmatics of language impaired children. Perceptual and Motor Skills, 56, 469–470
- Rueda, R. & Chan, K.S. (1980). Referential communication skills level of moderately mentally retarded adolescents. American Journal of Mental Deficiency, 85, 45–52
- Terman, L.M. & Merrill, M.A. (1960). Stanford Binet Intelligence Scale, Third Revision, Form I. — M. Boston: Houghton Mifflin Company.
- Vaughan, S.M., Russell, J.W. & Parsons, C.L. (1984). Language impaired children's skills on a referential communication task. Australian Journal of Human Communication Disorders, 12, 5–15
- Watson, J.M. (1977). The influence of context on referential description in children. British Journal of Educational Psychology, 47, 33–39
- Watson, J.M. (1978). Referential communication in normal and educationally subnormal children. Educational Research, 20, 109–113
- Wiig, E.H. & Semel, E.M. (1980). Language assessment and intervention for the learning disabled. Colombus, Ohio: Charles Merrill.
- Wilcoxon, F. (1945). Individual comparisons by ranking methods. Biometries Bulletin, 1, 80–83