Bartko, J.J., & Carpenter, W.I.On the methods and theory of reliability. Journal of Nervous and Mental Disease, 1976, 163, 307–317.
2.
Bayley, N.Manual for the Bayley scales of infant development. New York, Psychological Corporation, 1969.
3.
Bryan, T.M.Peer popularity of learning disabled children. Journal of Learning Disabilities, 1974, 7, 621–625.
4.
Devoney, C., Guralnick, M.J., & Rubin, M.Integrating handicapped and non-handicapped preschool children: Effects on social play. Childhood Education, 1974, 50, 360–364.
5.
Dunlop, K.H., Stoneman, Z., & Cantrell, M.L.Social interaction of exceptional and other children in a mainstreamed preschool classroom. Exceptional Children, 1980, 47, 132–141.
6.
Eckerman, C.O., & Whatley, J.L.Toys and social interaction between infant peers. Child Development, 1977, 48, 1645–1656.
7.
Eckerman, C.O., Whatley, J.L., & Kutz, S.L.Growth of social play with peers during the second year of life. Developmental Psychology, 1975, 11, 42–49.
8.
Field, T.Infant behaviors directed towards peers and adults in the presence and absence of mother. Infant Behavior and Development, 1979, 2, 47–54.
9.
Field, T.Self, teacher, toy and peer-directed behaviors of handicapped preschool children. In T. Field, S. Goldberg, D. Stern, & A. Sostek (Eds.), High-risk infants and children: Adult and peer interactions. New York: Academic Press, 1980.
10.
Field, T., Roseman, S., De Stefano, L., & Koewler, J., III. Play behaviors of handicapped preschool children in the presence and absence of nonhandicapped peers. Journal of Applied Developmental Psychology, 1981, 2, 49–58.
11.
Field, T., Ting, C., & Shuman, H.H.The onset of rhythmic activities in normal and high-risk infants. Developmental Psychobiology, 1979, 12, 97–100.
12.
Iano, R.P., Ayers, D., Heller, H.B., McGettingen, J.P., & Walker, V.S.Sociometric status of retarded children in an integrative program. Exceptional Children, 1974, 40, 267–271.
13.
Kravitz, H., & Boehm, J.Rhythmic habit patterns in infancy: Their sequences, age onset and frequency. Child Development, 1971, 42, 399–413.
14.
Lewis, M., Young, C., Brooks, J., & Miclialson, L.The beginning of friendship. In M. Lewis & L.A. Rosenblum (Eds.), Friendship and peer relations. New York: Wiley, 1975.
15.
Maudry, M., & Nekula, M.Social relations between children of the same age during the first two years of life. Journal of Genetic Psychology, 1939, 54, 193–215.
16.
Myers, J.L.Fundamentals of experimental design. Boston: Allyn & Bacon, 1972.
17.
Novak, M., Olley, G., & Kearney, D.Social skills of children with special needs in integrated separate preschools. In T.M. Field, S. Goldberg, D. Stern, & A. Sostek (Eds.), High-risk infants and children: Adult and peer interactions. New York: Academic Press, 1980.
18.
Peterson, N.L., & Haralick, J.G.Integration of handicapped and nonhandicapped preschoolers: An analysis of play behavior and social interaction. Education and Training of the Mentally Retarded, 1977, 12, 235–245.
19.
Piaget, J.Play, dreams and imitations in childhood. New York: Norton, 1972.
20.
Piaget, J.The origins of intelligence in children. New York: Norton, 1975.
21.
Porter, R.H., Ramsey, B., Tremblau, A., Iaccobo, M., & Crawley, S.Social interactions in heterogeneous groups of retarded and normally developing children: An observational study. In G.P. Sackett (Ed.), Observing behavior: Vol. l. Theory and applications in mental retardation. Baltimore, Md.: University Park Press, 1978.
22.
Ramey, C.J., Finkelstein, N.W., & O'Brien, C.Toys and infant behavior in the first year of life. Journal of Genetic Psychology, 1976, 129, 341–342.
23.
Rubinstein, J., & Howes, C.The effects of peers on toddlers' interactions with mother and toys. Child Development, 1976, 47, 597–605.
24.
Strain, P. (Ed.). The utilization of classroom peers as behavior change agents. New York: Plenum Press, 1981.
25.
White, B.N.Mainstreaming in grade school and preschool: How the child with special needs interacts with peers. In T. Field, S. Goldberg, D. Stern, & A. Sostek (Eds.), High-risk infants and children: Adult and peer interactions. New York: Academic Press, 1980.
26.
Woodward, M.The behavior of idiots interpreted by Piaget's theory of sensorimotor development. British Journal of Educational Psychology, 1960, 29, 13–18.