Bee, H.L., Van Engeren, L.F., Streissguth, A.P., Nyman, A.P., & Leckie, M.S. In U. Bronfenbrenner & M.A. Mahoney (Eds.), Influences in human development. Hinsdale, Ill.: Dryden, 1975.
2.
Bethlehem (PA)Area School District's Pre-kindergarten Inventory: Stimulus and examiner's booklets. Bethlehem, Pa.: Bethlehem Area Board of Education, 1980.
3.
Bronfenbrenner, U.Is early intervention effective? In U. Bronfenbrenner & M. A. Mahoney (Eds.), Influences in human development. Hinsdale, III.: Dryden, 1975.
4.
Bruner, J.The nature and function of immaturity. American Psychologist, 1972, 43, 1–7.
5.
Buros, O.K. (Ed.). The seventh mental measurements yearbook. Lincoln, Neb: University of Nebraska Press, 1975.
6.
Cohen, N.L., & Tomlinson-Keasey, C.The effects of peers and mothers on toddlers' play. Child Development, 1968, 51, 921–924.
7.
Cox, F.N., & Campbell, D.Young children in a new situation with and without their mothers. Child Development, 1968, 39, 123–131.
8.
Dunn, L.Peabody Picture Vocabulary Test and Instructor's Manual. Circle Pines, Minn.: American Guidance Services, 1959.
9.
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.
10.
Feitelson, W., & Ross, G.S.The neglected factor-play. Human Development, 1973, 16, 202–223.
11.
Madden, J., Levenstein, P., & Levenstein, S.Longitudinal I.Q.outcomes of the mother-child home program. Child Development, 1976, 47, 1015–1025.
12.
Myers, J.Fundamentals of experimental design. Boston: Allyn and Bacon, 1979.
13.
Nicolich, L.Beyond sensorimotor intelligence: Assessment of symbolic maturity through analysis of pretend play. Merrill-Palmer Quarterly, 1977, 23(2), 8999.
14.
Peters, D.L., Neisworth, J.T., & Yawkey, T.D.Early childhood education: Theory and practice. Monterey, Calif.: Brooks/Cole, in press.
15.
Piaget, J.Play, dreams and imitation in childhood. New York: Norton, 1962.
16.
Piers, M.W., & Landau, G.M.The gift of play. New York: Walker, 1980.
17.
Pulaski, M.A.Understanding Piaget. New York: Harper & Row, 1980.
18.
Saltz, E., Dixon, D., & Johnson, D.Training disadvantaged preschoolers on various fantasy activities: Effects on cognitive functioning and impulse control. Child Development, 1977, 48, 367–380.
19.
Schaefer, E.S.Parents as educators: Evidence from cross-sectional longitudinal and intervention research. In W.W. Hart (Ed.), On the young child: Reviews of research (Vol. 2). Washington, D.C.: National Association for Young Children, 1972.
20.
Singer, J. (Ed.). The child's world of make-believe. New York: Academic Press, 1973.
21.
Smilansky, S.The effects of sociodramatic play on disadvantaged preschool children. New York: Wiley, 1968.
22.
Vandell, D.L.Effects of a play group experience on mother-son and father-son interaction. Developmental Psychology, 1979, 15, 379–385.
23.
White, B.L.The first three years of life. New York: Avon, 1975.
24.
Yawkey, T.D.Parenting and playing in home settings. In L. Hanson (Ed.), Parent involvement in early childhood. Provo, Utah: Brigham Young University Press, 1982.
25.
Yawkey, T.D., & Prewitt-Diaz, J.Increasing minority parent's abilities in self help, play and language growth of their young handicapped children in home settings. In W. Bell-Taylor (Ed.), Special education in action. Washington, D.C.: International Business Machines/U.S. Bureau for the Education of the Handicapped, 1982.
26.
Yawkey, T.D., & Silvern, S.B.Toward a comprehensive model for developmental curriculum and service evaluation in early development and education of minority, handicapped and other special needs children: Some working hypotheses (unclassified report). Madison, Wise.: Wisconsin Department of Public Instruction, 1977.
