Beckman, P.J. & Kohl, F.L. (1987) "Interactions of preschoolers with and without handicaps in integrated and segregated settings: A longitudinal study". Mental Retardation, 25, 5-11.
2.
Belsky, J. & Most, R.K. (1981) "From exploration to play: A cross-sectional study of infant free play and behaviour". Developmental Psychology , 17, 630-639.
3.
Beveridge, M. & Conti-Ramsden, G. (1987) "Social cognition and problem solving in persons with mental retardation". Australia and New Zealand Journal of Developmental Disabilities, 13 (2), 99-106.
4.
Boone, H.A. & Crais, E. (2000) "Strategies for achieving family-driven assessment and intervention planning". YoungExceptional Children, 3 (1), 2-11.
5.
Chen, D. (1999) "Beginning communication with infants". In D. Chen (Ed.) Essential Elements in Early Intervention: Visual Impairments and Multiple Disabilities (pp. 337-377). New York: American Foundation for the Blind Press.
6.
Chen, D. & Dote-Kwan, J. (1998) "Early intervention services for young children who have visual impairments with other disabilities and their families". In S. Z. Sacks & R. K. Silberman (Eds.), Educating Students Who Have Visual Impairments with Other Disabilities (pp. 303-338), Baltimore: Paul Brookes.
7.
Eppler, M.A. (1995) "Development of manipulatory skills and the deployment of attention". Infant Behaviour and Development, 18, 391-405.
8.
Gaylord-Ross, R.J., Haring, T.G., Breen, C. & Pitts-Conway, V. (1984) "The training and generalisation of social interaction skills with autistic youth". Journal of Applied Behaviour Analysis, 17, 229-247.
9.
Gowen, J.W., Johnson-Martin, N., Goldman, B.D. & Hussey, B. (1992) "Object play and exploration in children with and without disabilities: A longitudinal study". American Journal on Mental Retardation, 97 (1), 21-38.
10.
Guralnick, M.J. (1981) "The social behaviour of preschool children at different developmental levels: Effects of group composition". Journal of Experimental Child Psychology, 31, 115-130.
11.
Guralnick, M.J. & Weinhouse, E. (1984) "Peer-related social interactions of developmentally delayed young children: Development and characteristics". Developmental Psychology, 20, 815-817.
12.
Hauser-Cram, P. (1996) "Mastery motivation in toddlers with developmental disabilities". Child Development, 67, 236-248.
13.
Huebner, K. M., Prickett, J. G., Welch, T. R. & Joffee, E. (Eds.) (1995) Hand in hand: Essentials of communication and orientation and mobility for your students who are deaf-blind. New York: AFB Press.
14.
Hurley-Geffner, C.M. (1995) "Friendships between children with and without developmental disabilities". In R. L. Koegel & L. K. Koegel (Eds.) Teaching Children with Autism: Strategies for Initiating Positive Interactions and Improving Learning Opportunities (pp.105-125). Baltimore: Paul Brookes.
15.
Jennings, K.D., Connors, R.E. & Stegman, C.E. (1988) "Does a physical handicap alter the development of mastery motivation during the preschool years?" Journal of Child and Adolescent Psychiatry, 312-317.
16.
Le Van, R.R. (1990) "Clinical sampling in the assessment of young children with handicaps: Shopping for skills". Topics in Early Childhood Special Education, 10 (3), 65-79.
17.
Lifter, K. & Bloom, L. (1989) "Object knowledge and the emergence of language ". Infant Behaviour and Development, 12, 395-423.
18.
Lifter, K., Sulzer-Azaroff, B., Anderson, S. & Cowdery, G.E. (1993) "Teaching play activities to preschool children with disabilities: The importance of developmental considerations". Journal of Early Intervention, 17 (2), 139-159.
19.
Lutkenhaus, P. (1984) "Pleasure derived from mastery in three-year-olds: Its function for persistence and the influence of maternal behaviour". International Journal of Behavioural Development, 7, 343-358.
20.
Mar, H.H. & Sall, N. (1994) "Programmatic approach to use of technology in communication instruction for children with dual sensory impairments". Augmentative and Alternative Communication, 10, 138-150.
21.
Mar, H.H. & Sall, N. (1995) "Enhancing social opportunities and relationships of children who are deaf-blind". Journal of Visual Impairment and Blindness, 89, 280-286.
22.
Marks, S.B. (1998) "Understanding and preventing learned helplessness in children who are congenitally deaf-blind". Journal of Visual Impairment and Blindness, March, 200-211.
23.
National Technical Assistance Consortium (NTAC) ( 1999) National deaf-blind child count summary, December, 1998. Monmouth, OR: Teaching Research Division, Western Oregon University.
24.
Prickett, J.G. & Welch, T.R. (1998) "Educating students who are deafblind". In S. Z. Sacks & R. K. Silberman (Eds.), Educating Students Who Have Visual Impairments with Other Disabilities (pp. 139-160), Baltimore: Paul Brookes.
25.
Rast, M. & Meltzoff, A.N. (1995) "Memory and representation in young children with Down syndrome: Exploring deferred imitation and object permanence". Development and Psychopathology, 7, 393-407.
26.
Rowland, C. (1988) "Perspectives on communication assessment". In M. Bullis & G. Fielding (Eds.) Communication development in young children with deaf-blindness: Literature review. Monmouth, OR: Teaching Research Division, Western Oregon University.
27.
Rowland, C. & Schweigert, P. (1994) Project SOLVE: An active learning approach to the acquisition of functional problem solving skills for young children with multiple disabilities: Final report. Portland, OR: Oregon Health Sciences University.
28.
Rowland, C. & Schweigert, P. (1997a) Hands-on problem solving skills for children with deafblindness: Final report. Portland, OR: Oregon Health Sciences University.
29.
Rowland, C. & Schweigert, P. (1997b) Hands-on problem solving skills for children with deafblindness (HIPSS, SIPSS, TAPPS and Guide to Assessment and Teaching Strategies). Portland, OR, Oregon Health Sciences University.
30.
Rowland, C. & Stremel-Campbell, K. (1987) "Share and share alike: Conventional gestures through emergent language". In D. Guess, L. Goetz & K. Stremel-Campbell (Eds.), Innovative Program Design for Individuals with Sensory Impairments (pp. 15-48). Baltimore : Paul H. Brookes.
31.
Rubin, K.H., Fein, G.G. & Vandenberg, B. (1983) "Play". In E. M. Hetherington (Ed.), Handbook of child psychology: Vol. 4. Socialisation, personality, and social development (4th ed., pp.693-774). New York: Wiley.
32.
Ruff, H.A. & Saltarelli, L.M. (1993) "Exploratory play with objects: Basic cognitive processes and individual differences". The role of play in the development of thought. New Directions in Child Development , Spring, (59), 5-16.
33.
Sacks, S.Z. (1998) "Educating students who have visual impairments with other disabilities: An overview". In S. Z. Sacks & R. K. Silberman (Eds.) Educating students who have visual impairments with other disabilities (pp.3-38). Baltimore: Paul H. Brookes.
34.
Schwartz, I.S. & Olswang, L.B. (1996) "Evaluating child behaviour change in natural settings: Exploring alternative strategies for data collection". Topics in Early Childhood Special Education, 16 (1), 82-101.
35.
Schweigert, P. (1989) "Use of microswitch technology to facilitate social contingency awareness as a basis for early communication skills". Augmentative and Alternative Communication, 5, (3), 192-198.
36.
Schweigert, P. & Rowland, C. (1992) "Early communication and microtechnology: Instructional sequence and case studies of children with severe multiple disabilities". Augmentative and Alternative Communication, 8, (4), 273-286.
37.
Seibert, J.M. & Hogan, A.E. (1982) "A model for assessing social and object skills and planning intervention". In Mcclowry, D. P., Guilford, A. M. & Richardson, S. O. (Eds.). Infant communication: development, assessment, and intervention (pp.21-53). New York: Grune & Stratton.
38.
Seligman, M. (1975) Helplessness: On depression, development and death . San Francisco: W. H. Freeman.
39.
Sigman, M. & Sena, R. (1993) "Pretend play in high-risk and developmentally delayed children. The Role of Play in the Development of Thought". New Directions in Child Development, Spring, (59), 29-42.
40.
Silberman, R.K. & Brown, F. (1998) "Alternative approaches to assessing students who have visual impairments with other disabilities in classroom and community environments". In S. Z. Sacks & R. K. Silberman (Eds.), Educating Students Who Have Visual Impairments with Other Disabilities (pp.73-100). Baltimore : Paul Brookes.
41.
Tamis-LeMonda, C.S. & Bornstein, M.H. (1993) "Play and its relations to other mental functions in the child. The role of play in the development of thought". New Directions in Child Development, Spring (59), 17-28.
42.
Vandenberg, B. (1990) "Play and problem solving; An elusive connection ". Merrill-Palmer Quarterly, 36 (2), 261-272.
43.
Williams, C.K. & Kamii, C. (1986) "How do children learn by handling objects?" Young Children, 42 (1), 23-26.
